MCQ on Class 9 Science Improvement in Food Resources

Last updated on December 10th, 2023 at 11:31 pm

Class 9 Science Improvement in Food Resources

 

Which type of nutrients are required in large quantities by crops?

1. Micro-nutrients
2. Macro-nutrients
3. Organic nutrients
4. Essential nutrients

Answer: b) Macro-nutrients

 

Which of the following is a major source of nutrient supply to crops?

1. Organic manures
2. Crop residues
3. Pesticides
4. Rainwater

Answer: a) Organic manures

 

Which farming system emphasizes minimal or no use of chemicals and relies on organic manures, recycled farm wastes, and bio-agents?

1. Conventional farming
2. Intensive farming
3. Organic farming
4. Industrial farming

Answer: c) Organic farming

 

What does mixed farming involve on a particular farm?

1. Raising multiple livestock species
2. Cultivating multiple crop varieties
3. Growing crops and raising livestock
4. Implementing various farming techniques

Answer: c) Growing crops and raising livestock

 

What is the term used for growing two or more crops simultaneously on the same piece of land?

1. Intercropping
2. Crop rotation
3. Mixed cropping
4. Organic farming

Answer: c) Mixed cropping

 

What is the practice of growing different crops in pre-planned succession on a piece of land called?

1. Intercropping
2. Crop rotation
3. Mixed cropping
4. Organic farming

Answer: b) Crop rotation