Tag: cropping patterns

Questions Related to cropping patterns

Identify the advantage of proper storage.

biology improvement in food resources improved methods of agriculture cropping patterns food for all

  1. The quality of food is ensured for a longer time.

  2. The variety of food may be available in far places.

  3. The food poisoning is prevented.

  4. All of the above

Show answer
Correct Option: D
Explanation:
Proper storage of food helps in maintaining food quality by retaining flavor, colour, texture and nutrients, while reducing the chance of contracting a food-borne illness. It has various advantages as the quality of food remain intact therefore it can be used for longer time, it can be made available at far places where such food is not harvested and since it remains unaffected by microbes, food poisoning can be prevented.
So, the correct answer is option D.

The weeds competes for 

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Food

  2. Water

  3. Sunlight

  4. All of the above

Show answer
Correct Option: D

Which of the following is a weed?

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Sunflower

  2. Sugarcane

  3. Rose

  4. Wild grasses

Show answer
Correct Option: D

Which of the following is important to prevent the growth of weeds?

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Insecticides

  2. Pesticides

  3. Biofertilizers

  4. Weedicides

Show answer
Correct Option: D
Explanation:

Insecticides and pesticides are used to kill the insects and the pest that harm the crops . While biofetilizers are the manure (contains living microorganisms) . On the other hand , weedicides are used to kill the weeds .

So the correct option is 'Weedicides' .

The unwanted plants that grow in a crop field are known as

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Seeds

  2. Weeds

  3. Fruits

  4. Flowers

Show answer
Correct Option: B
Explanation:

The unwanted plants in a crop field are known as weeds. These compete with the crop plants in the field for nutrition, hence hampering their growth. 

So, the correct option is 'Weeds' .

Which of the following is a weed?

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Wheat

  2. Rice

  3. Maize

  4. None of the above

Show answer
Correct Option: D

Assertion : Storage of seeds at low temperature is possible.

Reason : Respiration and enzymatic activity are not shown by seeds at low temperature.

biology improvement in food resources improved methods of agriculture cropping patterns food for all

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true

Show answer
Correct Option: C
Explanation:

Some seeds are capable of withstanding exposure to low temperature (-10C to -20C). Some of properly dried seeds can withstand low temperature of even liquid nitrogen (- 196C). This reduces respiration and enzymatic activity to bare minimum which is required for sustaining the living of the seeds. Samples of the seeds are periodically tested for germination ability.

So, the correct answer is 'If the assertion is true but the reason is false'

Cochineal insect has been used in checking the wild growth of________________.

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Opuntia

  2. Eichhornia

  3. Aphids

  4. Screw worm

Show answer
Correct Option: A

Which of the following weed should be eradicated quickly?

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. Opuntia

  2. Eichhornia

  3. Parthenium

  4. Vallisneria

Show answer
Correct Option: C

Which of the following pesticides is an acetyl cholinestrase inhibitor?

evs whose forests? improved methods of agriculture cropping patterns food for all conservation of forest and wildlife wildlife deforestation and conservation

  1. DDT

  2. Deltamethrin

  3. Malathion

  4. Permethrin

Show answer
Correct Option: C
Explanation:

Malathion is an organophosphate and an acetyl cholinestrase inhibitor that is strictly used as a topical pediculicide.

Correct answer-C