All Exams  >   Class 10  >   Weekly Tests for Class 10 Preparation  >   All Questions

All questions of August Week 2 for Class 10 Exam

The graph of the equation x = 3 is:​
  • a)
    a point
  • b)
    straight line parallel to y axis
  • c)
    straight line passing through the origin
  • d)
    straight line parallel to x axis
Correct answer is option 'B'. Can you explain this answer?

Naina Sharma answered
x=3 is fixed. This means the value of x is constant. So y can vary but x has only one value. For example (3,0),(3,2),(3,5) etc. So the line drawn will be parallel to y axis as y can vary.

The point on x-axis which is equidistant from (5,9) and (-4,6) is​
  • a)
    (3,0)
  • b)
    (1,0)
  • c)
    (2,0)
  • d)
    (4,1)
Correct answer is option 'A'. Can you explain this answer?

Vikas Kumar answered
for 2 points to be equidistant to 2 another the length of the line drawn to them should the first two should be equal to the next two.
let that point be (x,0) (y=0 as it leis on the x axis)
using distance formula-
root of ((x+4)2 +(0-6)2)=root of ((x-5)2 +(0-9)2)
squaring both sides and opening the brackets we get-
x2 + 8x + 16 + 36 = x2 - 10x + 25 +81
bring variables to one side and constants to another we get-
18x = 54
x = 54/18 = 3
therefore x = 3 and y =0 (since it leis in the x axis)

The point (-1,-5) lies in the Quadrant​
  • a)
    3rd
  • b)
    1st
  • c)
    2nd
  • d)
    4th
Correct answer is option 'A'. Can you explain this answer?

Rising Star answered
Quadrant 1 = +,+

Quadrant 2= -,+

Quadrant 3= -,-

Quadrant 4 = +,-

Thus,the point (-1,-5 ) will lie in Quadrant 3 !!!

What initials are used to describe what scientists are trying to do to increase the yield of crops?
  • a)
    MF
  • b)
    GM
  • c)
    MG
  • d)
    FM
Correct answer is option 'B'. Can you explain this answer?

Poonam Reddy answered
Genetically modified crops (GM crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. In most cases, the aim is to introduce a new trait to the plant which does not occur naturally in the species.

What percentage of the world's surface is used for agriculture of some sort?
  • a)
    2%
  • b)
    5%
  • c)
    75%
  • d)
    35%
Correct answer is option 'D'. Can you explain this answer?

Anjali Kumar answered
Percentage of the world's surface used for agriculture

The correct answer is option D, 35%.

Explanation:

Definition of agriculture
Agriculture is the practice of cultivating plants and rearing animals for food, fiber, medicinal plants, and other products used to sustain and enhance human life.

Calculating the percentage
To determine the percentage of the world's surface used for agriculture, we need to consider the total land area dedicated to agricultural practices. According to the Food and Agriculture Organization (FAO) of the United Nations, as of 2020, the total land area used for agriculture globally is approximately 4.9 billion hectares.

Calculating the total surface area of the Earth
The total surface area of the Earth is approximately 510 million square kilometers, which is equivalent to 510 million hectares.

Calculating the percentage
Now, we can calculate the percentage of the world's surface used for agriculture:

Percentage = (Agricultural land area / Total land area) * 100
Percentage = (4.9 billion hectares / 510 million hectares) * 100
Percentage ≈ 35%

Therefore, approximately 35% of the world's surface is used for agriculture in some form.

Importance of agriculture
Agriculture plays a crucial role in sustaining human life and the global economy. It provides food security, employment opportunities, raw materials for various industries, and contributes to the overall development of a nation. Sustainable agricultural practices are essential to ensure the availability of food for a growing global population while preserving natural resources and minimizing environmental impact.

Conclusion
Understanding the percentage of the world's surface used for agriculture helps to highlight the significant impact of agriculture on our planet. With approximately 35% of the Earth's surface dedicated to agricultural practices, it is essential to promote sustainable farming methods and ensure the efficient use of land and resources to meet the growing demands for food and other agricultural products.

What name is given to the form of agriculture that raises only crops?
  • a)
    Arable
  • b)
    Mixed
  • c)
    Pastoral
  • d)
    Grain
Correct answer is option 'A'. Can you explain this answer?

Ankit Kumar answered
(Correct Answer:- A)

Favourable topography of soil and climate are vital
for agricultural activity. The land on which the crops
are grown is known as arable land. Agricultural activities are concentrated in those regions of the world where suitable factors for the growing of crops exist.

The perimeter of the triangle formed by the points A(0,0), B(1,0) and C(0,1) is
  • a)
    √2 + 1
  • b)
    1 ± √2
  • c)
    2 + √2
  • d)
    3
Correct answer is option 'C'. Can you explain this answer?

Consider A (0,0),B (1,0),C (0,1)

=>AB=root(X2-X1)^2+(Y2-Y1)^2

=>AB=root (1-0)^2+(1-0)^2

=>AB=1

similarly,

BC=root2

and

AC=1

Perimeter=AB+BC+AC

=1+root1+1
=2+root2

If A and B are the points (-6, 7) and (-1, -5) respectively, then the distance 2AB is equal to​
  • a)
    26
  • b)
    169
  • c)
    13
  • d)
    238
Correct answer is option 'A'. Can you explain this answer?

Aditi bajaj answered
To find the distance between two points, we can use the distance formula. The distance formula is derived from the Pythagorean theorem and allows us to calculate the distance between two points in a coordinate plane.

The distance formula is given by:
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

where (x1, y1) and (x2, y2) are the coordinates of the two points.

In this case, we are given the points A (-6, 7) and B (-1, -5). We need to find the distance 2AB, which means we need to find the distance between A and B and then multiply it by 2.

Let's calculate the distance between A and B first:

x1 = -6, y1 = 7 (coordinates of A)
x2 = -1, y2 = -5 (coordinates of B)

Using the distance formula:
dAB = sqrt((-1 - (-6))^2 + (-5 - 7)^2)
= sqrt(5^2 + (-12)^2)
= sqrt(25 + 144)
= sqrt(169)
= 13

Now, to find the distance 2AB, we multiply the distance between A and B by 2:
2AB = 2 * 13
= 26

So, the distance 2AB is equal to 26. Therefore, the correct answer is option A.

Percentage of protein in fish is:
  • a)
    30 - 35
  • b)
    35 - 40
  • c)
    40 - 50
  • d)
    Less than 30
Correct answer is option 'D'. Can you explain this answer?

Kritika Basak answered
The exact protein content of fish depends on the species you select. In a 3-ounce serving size of the most common fin fish, you’ll get between 16 and 26 grams of protein.

Reindeer herding is one of the few forms of nomadic or shifting agriculture practised outside the tropics.
  • a)
    True
  • b)
    False
Correct answer is 'A'. Can you explain this answer?

Reindeer herding is one of the forms of nomadic or shifting agriculture practised outside the tropics. 
Reindeer herding is limited to some areas only. A person who conduct reindeer herding is called reindeer herders and approximately 100,000 people are engaged in reindeer herding today around circumpolar north.

he horizontal and vertical lines drawn to determine the position of a point in a Cartesian plane are called​
  • a)
    Intersecting lines
  • b)
    Transversals
  • c)
    Perpendicular lines
  • d)
    X-axis and Y-axis
Correct answer is option 'D'. Can you explain this answer?

Ananya Das answered
The point is determined on 2 dimensions .The name of horizontal and vertical lines drawn to determine the position of any point in the Cartesian plane is x-axis and y-axis respectively. The name of each part of the plane formed by these two lines x-axis and the y-axis is quadrants. The point where these two lines intersect is called the origin.

Which country is the leading producer (not exporter) of rice?
  • a)
    India
  • b)
    China
  • c)
    Bangladesh
  • d)
    Japan
Correct answer is option 'B'. Can you explain this answer?

Pankaj Pillai answered
Explanation:

China is the leading producer of rice in the world. The country produces more than 30% of the total rice produced globally, followed by India and Indonesia.

Reasons behind China's Rice Production:

1. Favorable climate: China has a favorable climate for rice production, with sufficient rainfall and warm temperatures.

2. Large arable land: China has a large arable land area, which makes it possible for the country to produce large quantities of rice.

3. Government support: The Chinese government has invested heavily in the agricultural sector, providing subsidies and other forms of support to farmers.

4. Improved technology: China has made significant advancements in rice cultivation technology, including the development of new rice varieties that are resistant to pests and diseases.

5. Efficient irrigation systems: China has efficient irrigation systems that ensure that rice paddies receive adequate water and nutrients.

Conclusion:

In conclusion, China is the leading producer of rice in the world due to favorable climate, large arable land, government support, improved technology, and efficient irrigation systems.

Who announced the introduction of National Food Security Act?
  • a)
    Pranab Mukherjee
  • b)
    Manmohan Singh
  • c)
    P.Chidambaram
  • d)
    Arun Jaitley
Correct answer is option 'A'. Can you explain this answer?

Arshiya Yadav answered
On July 6, 2009, Finance Minister Mr.Pranab Mukherjee announced the introduction of National Food Security Act under which BPL families in rural and urban areas will be entitled by law to 25 kg. of wheat or rice per month at Rs. 3 per kg.

The condition that the point (x,y) may lie on the line joining (3,4) and (-5,-6) is​
  • a)
    -5x+4y+1=0
  • b)
    -5x-4y+1=0
  • c)
    5x+4y+1=0
  • d)
    5x-4y+1=0
Correct answer is option 'D'. Can you explain this answer?

Since the point P(x,y) lies on the line joining A(3,4) and B(-5,-6), 

Therefore, points P, A and B are collinear points.

So, area of triangle PAB = 0                                         

Therefore, we have: 

10x-18-3y-5y+20=0

10x-8y+2=0

5x-4y+1=0 , which is the required condition. 

Agriculture can cause soil erosion.
  • a)
    True
  • b)
    False
Correct answer is option 'A'. Can you explain this answer?

Chetna Sharma answered
When farmers plow their fields they leave the soil bare and exposed to the elements. As a result, wind and rain can pretty easily sweep soil away into rivers and lakes.

If the four points (0,-1), (6,7),(-2,3) and (8,3) are the vertices of a rectangle, then its area is​
  • a)
    40 sq. units
  • b)
    12 sq. units
  • c)
    10 sq. units
  • d)
    13 sq. units
Correct answer is option 'A'. Can you explain this answer?

Arun Sharma answered
Let A(0-1), B(6,7), C(-2,3) and D(8,3) be the given points. Then
∴ AD = BC and AC = BD
So, ADBC is a parallelogram
Now 
Clearly, AB= AD+ DBand CD= CB+ BD2
Hence, ADBC is a rectangle.
Now
,Area of rectangle ADBC = AD × DB =(4√5​ × 2√5​)sq. units = 40sq. units

At what rate does soil form naturally?
  • a)
    Moderately slowly
  • b)
    Moderately quickly
  • c)
    Very slowly
  • d)
    Very quickly
Correct answer is option 'C'. Can you explain this answer?

Swati Sharma answered
The correct option is C.
The time needed to form a soil depends on the latitude: in environments characterized by a mild climate, it takes 200-400 years to form 1 cm of soil. In wet tropical areas soil formation is faster, as it takes 200 years. In order to accumulate enough substances to make a soil fertile it takes 3000 years.

Which are the world's most numerous farm animals?
  • a)
    Sheep
  • b)
    Pigs
  • c)
    Chickens
  • d)
    Cows
Correct answer is 'C'. Can you explain this answer?

Varun Kapoor answered
Poultry are farmed in great numbers with chickens being the most numerous. More than 50 billion chickens are raised annually as a source of food, for both their meat and their eggs. Chickens raised for eggs are usually called layers while chickens raised for meat are often called broilers.

About when did agriculture begin?
  • a)
    50,000 years ago
  • b)
    10,000 years ago
  • c)
    5,000 years ago
  • d)
    20,000 years ago
Correct answer is option 'B'. Can you explain this answer?

Sanchita Datta answered
Sometime around 10,000-12,000 years ago, our hunter-gatherer ancestors began trying their hand at farming.
First, they grew wild varieties of crops like peas, lentils and barley and herded wild animals like goats and wild oxen. Centuries later, they switched to farming full time, breeding both animals and plants, creating new varieties and breeds. Eventually, they migrated outward, spreading farming to parts of Europe and Asia.

Which of these crops is not one of the top five food staples (providers of energy) in the world?
  • a)
    Barley
  • b)
    Wheat
  • c)
    Maize
  • d)
    Rice
Correct answer is option 'A'. Can you explain this answer?

Varun Kapoor answered
Barley (Hordeum vulgare), a member of the grass family, is a major cereal grain grown in temperate climates globally. It was one of the first cultivated grains, particularly in Eurasia as early as 10,000 years ago.Barley has been used as animal fodder, as a source of fermentable material for beer and certain distilled beverages, and as a component of various health foods. It is used in soups and stews, and in barley bread of various cultures. Barley grains are commonly made into malt in a traditional and ancient method of preparation.

In 2014, barley was ranked fourth among grains in quantity produced (144 million tonnes) behind maize, rice and wheat.

What is commercial horticulture?
  • a)
    Keeping birds
  • b)
    Raising fruit and vegetables
  • c)
    Raising cereals
  • d)
    Keeping animals
Correct answer is option 'B'. Can you explain this answer?

Let's Tute answered
Coffee cultivation was first introduced in India by Baba Budan in the Chikmagalur district of Karnataka, in the Baba Budan Hills.
 

Reindeer herding is one of the few forms of nomadic or shifting agriculture practised outside the tropics.
  • a)
    True
  • b)
    False
Correct answer is option 'A'. Can you explain this answer?

Reindeer herding is one of the forms of nomadic or shifting agriculture practised outside the tropics. 
Reindeer herding is limited to some areas only. A person who conduct reindeer herding is called reindeer herders and approximately 100,000 people are engaged in reindeer herding today around circumpolar north.

Let P(x, y) be equidistant from the points A (7, 1) and (3, 5).Find a relation between x and y.​
  • a)
    y – x = 4
  • b)
    y – x = 2
  • c)
    x – y = 2
  • d)
    x – y = 4
Correct answer is option 'C'. Can you explain this answer?

We start with the fact that point P(x, y) is equidistant from A(7, 1) and B(3, 5). Using the distance formula:
  sqrt((x - 7)² + (y - 1)²) = sqrt((x - 3)² + (y - 5)²)
Square both sides to remove the square roots:
  (x - 7)² + (y - 1)² = (x - 3)² + (y - 5)²
Expand both sides:
  Left side: x² - 14x + 49 + y² - 2y + 1
  Right side: x² - 6x + 9 + y² - 10y + 25
Simplify each side:
  Left side becomes: x² + y² - 14x - 2y + 50
  Right side becomes: x² + y² - 6x - 10y + 34
Subtract the right side from the left side:
  (x² + y² - 14x - 2y + 50) - (x² + y² - 6x - 10y + 34) = 0
This simplifies to:
  -8x + 8y + 16 = 0
Divide the entire equation by 8:
  -x + y + 2 = 0
Rearrange to solve for the relation between x and y:
  x - y = 2
Thus, the correct relation is x - y = 2, which corresponds to option C.

Chapter doubts & questions for August Week 2 - Weekly Tests for Class 10 Preparation 2025 is part of Class 10 exam preparation. The chapters have been prepared according to the Class 10 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 10 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

Chapter doubts & questions of August Week 2 - Weekly Tests for Class 10 Preparation in English & Hindi are available as part of Class 10 exam. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.

Top Courses Class 10

Related Class 10 Content