Economic Botany

Q.

What are the advantages of hydroponics?

Q.

How do plants absorb nutrients?

Q.

Operation flood is related to:

1. Green Revolution

2. Brown Revolution

3. White Revolution

4. Flood and disaster management

Q.

Define exotic breed.

Q.

All crop plants are sown as seeds in the field.

1. True
2. False

Q.

What nutrients to use in hydroponics?

Q.

Give two examples of exotic breeds of cows.

Q. The scientist who first demonstrated that plants could be grown to maturity in a defined nutrient solution is

1. J. Sachs
2. John Woodward
3. J.B. Helmont
4. De Saussure

Q. ___ deals with rearing animals at home or in farms.

1. Animal farming
2. Animal science
3. Animal husbandry
4. Animal life

Q.

Rearing of chicken and ducks for eggs and meat is called:

1. sericulture

2. apiculture

3. poultry

4. farming

Q.

Can hemp be grown hydroponically?

Q. The branch of agriculture that deals with the cultivation of vegetables, fruits, and flowers is called .

1. sericulture
2. horticulture
3. floriculture

Q.

Which of the following are exotic breeds?

1. Brawn
2. Jersey
3. Brown Swiss
4. Jersey Swiss

1. (i) and (iii)

2. (ii) and (iii)

3. (i) and (iv)

4. (ii) and (iv)

Q. Assertion (A): Manure is prepared by the decomposition of animal excreta and plant waste.
Reason (R): Excess fertiliser leads to water pollution.

Q.

What are the best hydroponic plants?

Q.

Live-stock management includes the rearing of

1. Goat

2. Cow

3. Sheep

4. All of these

Q.

Which of the methods are followed in polyhouse farming?

1. Crops are covered in polyethylene sheets

2. The soil is covered with polyethylene sheets

3. Nutrients are supplied through drip irrigation

4. Plants are grown in nutrient solution

Q.

Which of the following are issues faced by farmers?

1. High cost of crop production

2. Climate change

3. Crop loss

4. All of these

Q.

Give three important aspects of organic farming.

Q.

Which of the following methods helps us to overcome the crisis of environmental pollution caused due to chemical fertilisers/pesticides?

1. Biofertilisers

2. Polyhouse farming

3. Precision farming

4. Integrated pest management

Q. Which of the following chemicals is used for protecting vermi-bed from ants?​

1. DDT
2. Griseofulvin
3. Chloramphenicol
4. Chlorpyriophosphate

Q.

Are hydroponically grown vegetables healthy?

Q. Processing is a step during waste management which means

1. Operation to convert a material into a non-biodegradable waste
2. Operation to convert a material into a useful product
3. Operation to convert a material into a weedicides
4. None of the above

Q.

Mychorrhiza is the symbiosis between ________ .

1. fungus and plants

2. plant and bacteria

3. algae and fungus

4. fungus and bacteria

Q.

Which of these is a macronutrient used by plants?

1. Nitrogen

2. Zinc

3. Copper

4. Chlorine

Q.

Agriculture by using only biofertilizers is called:

1. Manuring

2. Composting

3. Inorganic farming

4. Organic farming

Q.

Rearing of silkworms for the production of silk is called:

1. Pisciculture

2. Apiculture

3. Sericulture

4. Cuniculture

Q. The distribution of fertilizers by aircraft is widely practised in______________

1. England
2. France
3. Germany
4. New Zealand

Q. Bio-fertilizers include:

1. Nitrogen fixing bacteria
2. Nitrogen fixing cyanobacteria
3. Both bacteria and cyanobacteria
4. Bacteria, cyanobacteria and mycorrhizal fungi

Q.

Identify the steps in agricultural practices depicted in the images below.

1. 2. 3. 4.

1. 1. Irrigation, 2. Sowing, 3. Fertiliser addition, 4. Preparation of soil
2. 1. Preparation of soil, 2. Sowing, 3. Fertiliser addition, 4. Irrigation
3. 1. Fertiliser addition, 2. Sowing, 3. Preparation of soil, 4. Irrigation
4. 1. Irrigation, 2. Fertiliser addition, 3. Sowing, 4. Preparation of soil