Class 9 Practice Level 3 - Improvement in Food Resources - Set 2

Total questions: 15

A farmer plans a three-year crop rotation involving wheat, legumes, and barley. If the nitrogen depletion rates are 50 units/year for wheat, 20 units/year for legumes, and 40 units/year for barley, what is the total nitrogen depletion after one complete rotation?

Topic: Crop Rotation

90 units

100 units

110 units

120 units

None

A dairy cow consumes 20 kg of feed daily. If the feed contains 15% protein, how much protein does the cow consume per day?

Topic: Animal Husbandry

2 kg

3 kg

4 kg

5 kg

None

If a sprinkler system delivers water at a rate of 8 litres per minute and runs for 5 hours a day, how many litres of water does it deliver in a week?

Topic: Irrigation Efficiency

12000 litres

14000 litres

16800 litres

18000 litres

None

A field requires 100 kg of potassium per hectare. If a potassium fertilizer contains 50% potassium, how many kilograms of the fertilizer are needed per hectare?

Topic: Soil Management

100 kg

150 kg

200 kg

250 kg

None

If a field of 5 hectares produces 7500 kg of maize, what is the average yield per hectare?

Topic: Crop Production

1200 kg/ha

1300 kg/ha

1400 kg/ha

1500 kg/ha

None

In a genetic modification experiment, a scientist treats 200 plants, and 30 of them show successful gene expression. What is the success rate of the gene expression?

Topic: Genetic Engineering

10%

15%

20%

25%

None

A farmer grows three crops in rotation: soybeans, corn, and wheat. If soybeans add 40 units of nitrogen to the soil, corn depletes 30 units, and wheat depletes 50 units, what is the net nitrogen balance after one complete rotation?

Topic: Crop Rotation

-40 units

-20 units

0 units

+20 units

None

A farmer has 100 goats, each consuming 4 kg of fodder daily. If the fodder costs ₹10 per kg, what is the total cost of fodder for 30 days?

Topic: Livestock Management

₹100,000

₹110,000

₹120,000

₹130,000

None

A fertilizer recommendation is to apply 60 kg of nitrogen per hectare. If a farmer has a 15-hectare field, how much nitrogen is required for the entire field?

Topic: Fertilizer Application

600 kg

800 kg

900 kg

1000 kg

None

10.

A crop requires 700 mm of water during its growing season. If irrigation provides water at a rate of 5 mm per hour, how many hours of irrigation are needed to meet the crop's water requirement?

Topic: Water Management

120 hours

130 hours

140 hours

150 hours

None

11.

A farmer harvested 2000 kg of tomatoes from a 4-hectare field. Calculate the average yield per hectare

Topic: Crop Yield Calculation

400 kg/ha

450 kg/ha

500 kg/ha

550 kg/ha

None

12.

If a drip irrigation system delivers 6 litres of water per hour per emitter and a field has 250 emitters, how much water is delivered in 8 hours?

Topic: Irrigation Efficiency

10000 litres

11000 litres

12000 litres

13000 litres

None

13.

A field requires 90 kg of phosphorus per hectare. If a fertilizer contains 25% phosphorus, how many kilograms of fertilizer are needed per hectare?

Topic: Nutrient Management

320 kg

340 kg

360 kg

380 kg

None

14.

A scientist inserts a gene into 50 plants, and 10 plants show successful expression. What is the success rate of the gene insertion?

Topic: Genetic Engineering

15%

18%

20%

25%

None

15.

If a farmer wants to increase the yield of a crop from 1500 kg/ha to 2000 kg/ha on a 5-hectare field, how much additional yield is needed?

Topic: Crop Production

2000 kg

2500 kg

3000 kg

3500 kg

None

1 out of 15

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Class 9 Practice Level 3 - Improvement in Food Resources - Set 2

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