Question

1: Which of the following is an important factor for growth of crops?
a. Temperature
b. Humidity
c. Rainfall
d. All of the above

2: Which of the following is a kharif crop?
a. Wheat
b. Mustard
c. Groundnut
d. Gram

3: Which of the following is generally used for making compost?
a. Microbes
b. Earthworm
c. Soil
d. Animal and plant waste

4: Which of the following is used for tilling the land by cultivator?
a. Tractor
b.Bullock
c. Buffalo
d. Horse

5: Rhizobium is found in root nodules of which of the following plants?
a. Cereals
b. Pulses
c. Oilseeds
d. Horticultural plants

6: What is NPK?
a. Fertiliser
b. Manure
c. Weedicide
d. A type of weed ​

Answer 1

Answer:

Explanation:1d. All of the above

2c. Groundnut,3b. Earthworm,

4a. Tractor,5b. Pulses ,6a.Fertiliser

Answer 2

1. Option D) All of the above are important factors for the growth of crops. Each crop requires a specific temperature, humidity, rainfall, etc. for optimum growth. This is why each crop is grown in a different part of the country depending upon the abiotic factors that affect them.
2. Option C) Groundnut is a kharif crop. Kharif crops require lots of water during the sowing time. They are sown in the rainy season and harvested during Oct-Sept.
3. Option D) Animal and plant waste is generally used for making compost. Compost is made up of biodegradable materials like plant and animal wastes. It is a way of reusing waste products and making use of waste.
4. Option A) Tractor is used for tilling the land by the cultivator. The modern way of tilling is by the use of tractors. By using removable tools, each modified for digging, turning soil, etc.
5. Option B) Rhizobium is found in root nodules of Pulses. Pulses are unable to take up nitrogen from the soil. Rhizobium is a nitrogen-fixing bacteria and aids in supplying nitrogen to the pulses.
6. Option A) NPK is a fertilizer. NPK stands for nitrogen- phosphorous-potassium. Plants require these elements but are unable to obtain them from the soil. Hence fertilizer rich in these elements are sprayed on the plants.