Class 8 Science
Multiple Choice Questions
Question 1: Which of the following is an important factor for growth of crops?
- All of the above
Answer: (d) All of the above
Question 2: Which of the following is a kharif crop?
Answer: (c) Groundnut
Question 3: Which of the following is generally used for making compost?
- Animal and plant waste
Answer: (d) Animal and plant waste
Question 4: Which of the following is used for tilling the land by cultivator?
Answer: (a) Tractor
Question 5: Rhizobium is found in root nodules of which of the following plants?
- Horticultural plants
Answer: (b) Pulses
Question 6: What is NPK?
- A type of weed
Answer: (a) Fertiliser
Very Short Answer Type Questions
Question 1: What is agriculture?
Answer: Cultivation of plants and rearing of animals for food and other beneficial items is called agriculture.
Question 2: What is a crop?
Answer: When plants of the same kind are grown and cultivated at one place on a large scale, it is called a crop.
Question 3: What are the main types of crops in India?
Answer: There are two main types of crops in India, viz. kharif and rabi.
Question 4: What is ploughing?
Answer: Loosening of soil is done by plough and this practice is also called ploughing or tilling.
Question 5: What is sowing?
Answer: Putting seeds in soil is called sowing.
Question 6: What are fertilizers?
Answer: Fertilisers are chemicals which contain a particular plant nutrient.
Question 7: What is a fallow field?
Answer: A field which is left uncultivated for a couple of seasons is called a fallow field.
Question 8: What is irrigation?
Answer: The supply of water to crops at different intervals is called irrigation.
Question 9: What are weeds?
Answer: Unwanted plants which grow along with crops are called weeds.
Question 10: What is winnowing?
Answer: Separation of grains and chaff is called winnowing.