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All questions of May Week 4 for Class 6 Exam

Which of the following is true about a point in geometry?
  • a)
    A point has a definite size.
  • b)
    A point is labeled with lowercase letters.
  • c)
    A point marks an exact location but has no size.
  • d)
    A point extends infinitely in all directions.
Correct answer is option 'C'. Can you explain this answer?

A point in geometry is an exact location with no length, width, or height. It is usually labeled with a capital letter and is imagined to be very small, representing a specific position without any physical dimensions.

What type of root system is typically found in plants with parallel venation?
  • a)
    Taproot system
  • b)
    Fibrous root system
  • c)
    Adventitious root system
  • d)
    No root system
Correct answer is option 'B'. Can you explain this answer?

Kds Coaching answered
Plants with parallel venation, like grass and wheat, usually have a fibrous root system. This root system consists of many thin roots of similar size spreading out from the base of the stem. In contrast, plants with reticulate venation, like hibiscus, have a taproot system with one main root and smaller side roots branching off. This relationship between venation and root type is a common characteristic used to group plants.

What is the measure of a right angle?
  • a)
    45°
  • b)
    90°
  • c)
    180°
  • d)
    360°
Correct answer is option 'B'. Can you explain this answer?

Gunjan Lakhani answered
A right angle measures exactly 90°, which is half of a straight angle (180°). It is often represented by the 'L' shape.

How many oceans are commonly recognized on the world map?
  • a)
    Three
  • b)
    Four
  • c)
    Five
  • d)
    Six
Correct answer is option 'C'. Can you explain this answer?

Dr Manju Sen answered
Five oceans are commonly recognized: the Pacific Ocean, Atlantic Ocean, Indian Ocean, Arctic Ocean, and Southern (or Antarctic) Ocean.

What is the smallest continent by land area?
  • a)
    Europe
  • b)
    Asia
  • c)
    Australia
  • d)
    South America
Correct answer is option 'C'. Can you explain this answer?

Dr Manju Sen answered
Australia is the smallest continent by land area, often referred to as both a continent and a country.

What is responsible for bringing monsoon rains to India?
  • a)
    Tsunami
  • b)
    Cyclone
  • c)
    Monsoon Winds
  • d)
    Ocean currents
Correct answer is option 'C'. Can you explain this answer?

EduRev Class 6 answered
The monsoon rains in India are primarily caused by the Indian Ocean Monsoon winds, which result from the differential heating of land and sea. This leads to a seasonal reversal in wind direction, bringing moist air from the ocean over the Indian subcontinent and resulting in monsoon rains.

What is the main purpose of adaptations in plants and animals?
  • a)
    To look beautiful and attract attention.
  • b)
    To survive and thrive in their specific environment.
  • c)
    To compete with other organisms for resources.
  • d)
    To increase their population size quickly.
Correct answer is option 'B'. Can you explain this answer?

Ashutosh Verma answered
Understanding Adaptations
Adaptations are essential features or behaviors that enable plants and animals to thrive in their specific environments. These adaptations can be structural, behavioral, or physiological and are crucial for survival.
Why Adaptations Matter
- Survival: Adaptations help organisms to survive in their habitats by providing necessary tools for coping with environmental challenges.
- Resource Utilization: Different adaptations allow species to efficiently utilize available resources such as food, water, and shelter. For example, cacti have thick skins to retain water in arid environments.
- Predator and Prey Dynamics: Adaptations can enhance an organism's ability to evade predators or improve its hunting capabilities. For instance, the camouflage of certain animals helps them blend in with their surroundings.
- Reproductive Success: Adaptations can also affect reproduction. Brightly colored flowers attract pollinators, while certain animal behaviors ensure successful mating.
Types of Adaptations
- Structural Adaptations: Physical features of an organism, such as the long neck of a giraffe for reaching high leaves or the thick fur of polar bears for insulation.
- Behavioral Adaptations: Actions taken by organisms to survive. For instance, migratory patterns in birds help them find suitable climates and food sources.
- Physiological Adaptations: Internal processes that enhance survival, like the ability of some reptiles to tolerate extreme temperatures.
Conclusion
In essence, adaptations are fundamental to the survival and thriving of both plants and animals in their respective environments. They enable species to meet the demands of their surroundings, ensuring their continued existence and evolution.

What is the main difference between a line and a line segment?
  • a)
    A line segment has no endpoints, while a line has two endpoints.
  • b)
    A line extends infinitely in both directions, while a line segment has two endpoints.
  • c)
    A line segment extends infinitely in one direction, while a line does not extend.
  • d)
    A line segment is curved, while a line is straight.
Correct answer is option 'B'. Can you explain this answer?

Ananya Das answered
The Difference Between a Line and a Line Segment
Understanding the distinction between a line and a line segment is fundamental in geometry. Here’s a detailed explanation:
Definition of a Line
- A line is a straight one-dimensional figure that extends infinitely in both directions.
- It has no endpoints and is usually represented with arrows at both ends, indicating its endless nature.
Definition of a Line Segment
- A line segment is a part of a line that has two distinct endpoints.
- It is defined by the points at either end and contains all the points between these endpoints.
Main Differences
- Endpoints:
- A line has no endpoints, while a line segment has two endpoints.
- Length:
- A line extends infinitely and does not have a measurable length.
- A line segment has a fixed length, which can be measured.
- Representation:
- A line is represented as a straight path with arrows at both ends (e.g., ↔).
- A line segment is represented as a straight path with points at both ends (e.g., AB).
Conclusion
Thus, the correct answer, option 'B', clearly states that a line extends infinitely in both directions, while a line segment has two endpoints. This understanding is crucial for solving problems and applying concepts in geometry effectively.

What is the main component of the Earth's water cycle?
  • a)
    Oceans
  • b)
    Rivers
  • c)
    Lakes
  • d)
    Groundwater
Correct answer is option 'A'. Can you explain this answer?

Understanding the Earth's Water Cycle
The Earth's water cycle is a continuous process that involves the movement of water in various forms throughout the environment.
Main Component: Oceans
- Largest Reservoir of Water: Oceans cover about 71% of the Earth's surface and hold approximately 97% of the planet's water. This vast amount makes oceans the primary source of water for the water cycle.
- Evaporation Process: The water from the oceans evaporates due to the sun's heat, turning into water vapor. This process is essential as it starts the cycle by moving water from the surface into the atmosphere.
- Role in Weather Patterns: The evaporation from oceans contributes to cloud formation and precipitation, affecting weather patterns globally.
Other Components
While rivers, lakes, and groundwater are important, they play a smaller role in the overall water cycle compared to oceans.
- Rivers: Collect and transport water but are fed mainly by rainfall and runoff, which are influenced by oceanic evaporation.
- Lakes: Serve as temporary storage for freshwater but are also dependent on the inflow from rivers and precipitation, which originates from ocean evaporation.
- Groundwater: Acts as a critical water source but is replenished by precipitation that falls back to the surface, which is also influenced by the oceans.
Conclusion
In summary, the oceans are the main component of the Earth's water cycle because they provide the majority of the water that evaporates, drives weather patterns, and sustains other water bodies. Understanding this integral role highlights the importance of oceans in maintaining the balance of the water cycle.

Which tool is used to measure angles?
  • a)
    Ruler
  • b)
    Compass
  • c)
    Protractor
  • d)
    Divider
Correct answer is option 'C'. Can you explain this answer?

Rutuja Roy answered
Understanding the Protractor
A protractor is a specialized tool designed specifically for measuring angles in degrees. It is an essential instrument in geometry and is widely used in both educational settings and various fields of engineering and design.
Why Use a Protractor?
- Precision Measurement: Protractors allow for accurate measurement of angles, which is crucial in geometry. They can measure angles ranging from 0 to 180 degrees (or sometimes 360 degrees for full rotation).
- Easy to Read: Most protractors are marked with clear, easy-to-read degree measurements. This makes it simple for users to determine the exact size of an angle.
- Types of Protractors: There are different types of protractors, including:
- Semi-Circular Protractors: These are typically used for measuring angles between 0 to 180 degrees.
- Full-Circular Protractors: These can measure angles from 0 to 360 degrees.
Comparison with Other Tools
- Ruler: While a ruler is used to measure lengths and distances, it does not provide the ability to measure angles.
- Compass: A compass is primarily used for drawing circles or arcs and does not function as a measuring tool for angles.
- Divider: Although dividers can help with measuring distances or transferring measurements, they are not designed to measure angles.
Conclusion
In summary, the correct answer is option 'C', the protractor, as it is the only tool specifically designed for measuring angles. Its accuracy and ease of use make it indispensable for students and professionals alike.

When is World Oceans Day celebrated?
  • a)
    May 8
  • b)
    June 8
  • c)
    July 8
  • d)
    August 8
Correct answer is option 'B'. Can you explain this answer?

Coachify answered
World Oceans Day is celebrated on June 8 to remind everyone of the major role the ocean plays in everyday life and the importance of protecting it.

Which country established the scientific base station 'Dakshin Gangotri' in Antarctica?
  • a)
    USA
  • b)
    Russia
  • c)
    India
  • d)
    Japan
Correct answer is option 'C'. Can you explain this answer?

Rahul Kumar answered
India established the scientific base station 'Dakshin Gangotri' in Antarctica in 1983 as part of its Antarctic exploration program.

What is a straight angle?
  • a)
    An angle of 0°
  • b)
    An angle of 90°
  • c)
    An angle of 180°
  • d)
    An angle of 360°
Correct answer is option 'C'. Can you explain this answer?

EduRev Class 6 answered
A straight angle measures exactly 180° and looks like a straight line. It is formed when the arms of the angle point in opposite directions.

Which of the following angles is an acute angle?
  • a)
    60°
  • b)
    120°
  • c)
    90°
  • d)
    180°
Correct answer is option 'A'. Can you explain this answer?

An acute angle is one that is less than 90°. Since 60° is less than 90°, it is classified as an acute angle.

What does the Indian Navy motto "Sam noh Varunah" mean?
  • a)
    Victory at sea
  • b)
    Guard the waters
  • c)
    Be auspicious to us, O Varuna
  • d)
    Protect the oceans
Correct answer is option 'C'. Can you explain this answer?

Gunjan Lakhani answered
The motto "Sam noh Varunah" means "Be auspicious to us, O Varuna," invoking the Vedic deity Varuna for protection and blessings over the oceans.

Which of the following animals is adapted to live in a desert?
  • a)
    Zebra
  • b)
    Frog
  • c)
    Penguin
  • d)
    Camel
Correct answer is option 'D'. Can you explain this answer?

Coders Trust answered
A camel is perfectly suited for desert life. It has special features like:
  • A hump to store fat, which it can use as energy when food is scarce.
  • The ability to survive without water for many days because it stores water in its body.
  • Long legs and wide hooves to walk on sand without sinking.
  • It does not sweat much, so it loses very little water.
Other animals like zebras and frogs need more water, and penguins live in cold places, not deserts.

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