Class 8 Exam  >  Class 8 Notes  >  Science Class 8  >  Very Short Questions - Crop Production And Management

Class 8 Science Chapter 1 Question Answers - Crop Production And Management

1 Crore+ students have signed up on EduRev. Have you? Download the App

Q 1: How do green plants synthesize their own food?
Ans. Green plants synthesize their own food by the process of photosynthesis.

Process of PhotosynthesisProcess of PhotosynthesisQ 2: Where do animals get their own food?
Ans. 
Animals get their food from plants and other animals.

Q 3: What do you mean by crop?
Ans. 
When plants of the same kind are grown and cultivated in one place on a large scale, it is called a crop.

CropCrop

Q 4: Name two broad cropping patterns.
Ans.
 
(a) Kharif crops
(b) Rabi crops

Q 5: Mention the names of two kharif crops.
Ans.

(a) Paddy crops
(b) Maize crops

Q 6: Write the names of two rabi crops.
Ans. 

(a) Wheat crops
(b) Gram crops

Q 7: What are agricultural practices?
Ans. 
The various steps to grow crops and storage of grains are collectively known as agricultural practices.

Q 8: What do you mean by the tilling or ploughing?
Ans. 
The process of loosening and turning the soil is called tilling or ploughing.

Q 9: What is a plough?
Ans.
The device used for tilling or ploughing is called plough.

Mild Steel 5 Bottom PloughMild Steel 5 Bottom Plough

Q 10: Name two materials used to make a plough.
Ans.
Wood and iron.

Q 11: Name some tools used in agriculture.
Ans.
Plough, hoe, cultivator.

Q 12: Write two uses of plough.
Ans. 

(a) It is used for tilling of soil.
(b) It is used to remove the weeds.

Q 13: Write two uses of hoe.
Ans.
(a) 
It is used to remove the weeds.
(b) It is used to loosen the soil.

Q 14: What is the traditional tool used for sowing?
Ans. The tool used traditionally for sowing is a funnel-shaped tool.

Q 15: What is manure?
Ans.
Manure is an organic substance obtained from the decomposition of plant and animal wastes.

Q 16: What do you mean by manuring?
Ans. 
The process of providing manure to replenish the soil with nutrients is called manuring.

Q 17: What are fertilizers?
Ans. 
Fertilizers are the chemical substances which are rich in a particular nutrient.

Q 18: Which is better to use, manure or fertilizers?
Ans. Manure is better than the fertilizers.

Q 19: What do you mean by the term irrigation?
Ans. The supply of water to crops at different intervals is called irrigation.

Q 20: Is the time and frequency of irrigation the same for all the crops?
Ans.
The time and frequency of irrigation varies from crop to crop.

Q 21: Write some sources of irrigation.
Ans. 
Wells, tubewells, ponds, rivers, and canals are the main sources of irrigation.

Q 22: Mention traditional methods of irrigation.
Ans.

(a) Moat
(b) Chain pump
(c) Dhekli
(d) Rahat
Class 8 Science Chapter 1 Question Answers - Crop Production And ManagementQ 23: What is the use of pumps?
Ans.
Pumps are commonly used for lifting water.

Q 24: What are the modern methods of irrigation?
Ans.

(a) Sprinkler system
(b) Drip system.

Q 25: What are weeds?
Ans.
The unwanted plants growing naturally with the main crop are called weeds.

Q 26: What is weeding?
Ans.
The process of removal of weeds is called weeding.

WeedingWeeding
Q 27: What are weedicides?
Ans.
The chemical substances which are used to control the weeds are called weedicides.

Q 28: Name a weedicide that is commonly used by the farmers.
Ans.
The weedicides commonly used by the farmers are 2, 4 D.

Q 29: Define harvesting.
Ans. 
The cutting of a crop after it is mature is called harvesting.

Q 30: What is threshing?
Ans. 
The process by which grains are separated from the chaff is called threshing.

Wheat ThreshingWheat Threshing

Q 31: What is winnowing?
Ans. 
It is a process of separation of grain and chaff.

Q 32: Name some harvest festivals.
Ans.
Pongal, Baishakhi, Nabanya, and Bihu are some harvest festivals.

Q 33: What do you mean by storage?
Ans.
The process of keeping grains for a longer time by saving them from moisture, insects, rats and microorganisms is called storage.

Q 34: Why is it necessary to dry grains before storage?
Ans. 
The grains are properly dried in the sun to reduce the moisture in them. This prevents attack by insects, pests, fungi and bacteria.

Q 35: Name two devices that are used to store grains at a large scale.
Ans.

(a) Silos
(b) Granaries

Q 36: What do you mean by animal husbandry?
Ans. 
Animal husbandry is the process of providing proper food, shelter and care to animals at large scale.

Q 37: Name a vitamin that is found in cod liver oil.
Ans. 
Vitamin D.

Q 38: Name any two fertilizers.
Ans. 
NPK, Diammonium phosphate

Q 39: What is combine?
Ans. 
A combine is a machine that is used for harvesting as well as threshing of crops or simply, we can say combine is a combined harvester and thresher.

CombineCombineQ 40: Name three natural methods of adding nutrients to soil.
Ans. 
Field fallow, crop rotation, and mixed cropping.

The document Class 8 Science Chapter 1 Question Answers - Crop Production And Management is a part of the Class 8 Course Science Class 8.
All you need of Class 8 at this link: Class 8
Are you preparing for Exam? Then you should check out the best video lectures, notes, free mock test series, crash course and much more provided by EduRev. You also get your detailed analysis and report cards along with 24x7 doubt solving for you to excel in exam. So join EduRev now and revolutionise the way you learn!
Sign up for Free Download App for Free
90 videos|273 docs|44 tests

Up next

FAQs on Class 8 Science Chapter 1 Question Answers - Crop Production And Management

1. What are the different methods of crop production?
Ans. The different methods of crop production include organic farming, precision farming, traditional farming, and hydroponics.
2. How can farmers manage pests and diseases in crops effectively?
Ans. Farmers can manage pests and diseases in crops effectively by using integrated pest management strategies, crop rotation, and planting resistant crop varieties.
3. What are the essential nutrients required for healthy crop growth?
Ans. The essential nutrients required for healthy crop growth include nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur.
4. How does irrigation play a crucial role in crop production?
Ans. Irrigation plays a crucial role in crop production by providing crops with the necessary water for growth, especially in regions with inadequate rainfall.
5. What are the benefits of using fertilizers in crop production?
Ans. The benefits of using fertilizers in crop production include improving soil fertility, promoting healthy plant growth, and increasing crop yield.
90 videos|273 docs|44 tests
Download as PDF

Up next

Explore Courses for Class 8 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

pdf

,

ppt

,

Free

,

video lectures

,

study material

,

Previous Year Questions with Solutions

,

Important questions

,

practice quizzes

,

Extra Questions

,

Viva Questions

,

shortcuts and tricks

,

Class 8 Science Chapter 1 Question Answers - Crop Production And Management

,

MCQs

,

Exam

,

past year papers

,

Objective type Questions

,

Sample Paper

,

Class 8 Science Chapter 1 Question Answers - Crop Production And Management

,

Summary

,

Class 8 Science Chapter 1 Question Answers - Crop Production And Management

,

Semester Notes

,

mock tests for examination

;