Improvement in Food Resources quiz

Which of these is a rabi crop?

Which of these is a micronutrient for plants?

Parthenium is a:

Growing two or more crops simultaneously in a definite row pattern is called:

Which fish is a surface feeder in composite fish culture?

The Italian bee used for honey production is:

Poultry birds raised for meat are called:

Compost prepared using earthworms is called:

Which of these is a kharif crop?

The total number of nutrients essential for plants is:

Name four desirable traits for crop improvement. (2 marks)

Why are legumes useful in crop rotation? (2 marks)

Name two crops used as green manure. (2 marks)

What are the advantages of mixed cropping? (2 marks)

Name four sources of irrigation used in India. (2 marks)

How do check dams and rainwater harvesting help agriculture? (2 marks)

What are biotic and abiotic factors responsible for storage losses? (2 marks)

Name two local and two exotic breeds of cattle. (2 marks)

What is the difference between capture fishing and culture fishery? (2 marks)

What is meant by photoperiod, and how does it affect crops? (2 marks)

A dairy farm has 20 cows, each giving 12 litres of milk a day. Find the total milk produced in a 30-day month. If milk is sold at Rs 50 per litre, find the monthly income. (3 marks)

A poultry farm has 2,000 layers. If each lays on average 5 eggs a week, how many eggs are produced in 4 weeks? If 2% break, how many are left for sale? (3 marks)

A farmer grows wheat and mustard in mixed cropping in the ratio 4 : 1 on 5 hectares. Find the area under each crop. (3 marks)

A bee-keeper has 30 hives. Each hive gives 25 kg of honey a year. If honey sells at Rs 400 per kg, find the yearly income. (3 marks)

India's foodgrain production rose from about 51 million tonnes in 1950-51 to about 330 million tonnes in 2023-24. How many times did it increase, approximately? Find the percentage increase, correct to the nearest whole number. (3 marks)

Read the passage and answer the questions. A farmer grows the same crop every year on his field. Over the years, the yield has fallen and pests have increased. An expert advises him to grow wheat after a legume crop. (i) What is this practice called? (ii) How will it improve soil fertility? (iii) How will it reduce pests? (5 marks)

Read the passage and answer the questions. A village farmer uses only chemical fertilisers. His soil has become hard and its earthworm population has dropped. (i) Why has the soil become hard? (ii) Suggest two organic alternatives. (iii) Give one advantage of chemical fertilisers. (5 marks)

Read the passage and answer the questions. In a fish pond, a farmer grows five types of fish together. Catla feeds at the surface, rohu in the middle, mrigal and common carp at the bottom and grass carp on weeds. (i) What is this system called? (ii) Why do these species not compete for food? (iii) Give one problem of this system. (5 marks)

Read the passage and answer the questions. A grain godown has walls with cracks and a leaking roof. Rats and insects have damaged the grain, and some of it has turned mouldy. (i) Name two biotic factors causing loss. (ii) Name one abiotic factor. (iii) Suggest three steps to improve storage. (5 marks)

Read the passage and answer the questions. A poultry farmer crosses the local Aseel breed with the exotic Leghorn breed to develop new varieties. (i) What is the aim of such cross-breeding? (ii) Name two desirable traits sought in poultry. (iii) Give two steps to keep poultry healthy. (5 marks)

Draw a chart showing the nutrients required by plants classified by source and as macronutrients and micronutrients. Explain the role of manures and fertilisers in supplying them. (6 marks)

Draw labelled diagrams showing mixed cropping, intercropping and crop rotation. Explain the advantages of each. (6 marks)

Draw a flowchart of crop variety improvement through hybridisation, showing parents and offspring. Explain the factors for which improvement is done. (6 marks)

Draw a labelled diagram of a pit for vermicomposting or composting. Explain the process and its benefits to soil. (6 marks)

Draw a flowchart showing different types of animal husbandry. Explain cattle farming, poultry and bee-keeping with two points each on management. (6 marks)