Tag: manure

Quizzes (1) Questions (141)

Questions Related to manure

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

.......... is a most important fertilizer.

  1. Carbon

  2. Phosphorous

  3. Nitrogen

  4. Oxygen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Nitrogen is considered to be the most important fertilizer, and plants absorb more nitrogen than any other element. Nitrogen is essential in making sure plants are healthy as they develop and nutritious to eat after they are harvested. That is because nitrogen is essential in the formation of protein, and protein makes up much of the tissues of most living things. 
Therefore, the correct answer is option C.
Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

The increased use of nitrogen fertilizers results in .......... in the atmosphere.

  1. Greenhouse effect

  2. Global warming

  3. Ozone depletion

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • The increased use of nitrogen fertilizer, adds to the already existing amount of reactive nitrogen in the atmosphere, in the form of nitrous oxide (N2O) through the nitrogen cycle. 
  • It is the third most important greenhouse gas following carbon dioxide and methane. Greenhouses gases, including nitrous oxide, causes global warming by absorbing the solar energy in the atmosphere and global warming leads to the stratospheric ozone depletion. 

Therefore, the correct answer is option D.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Which of the following descriptions is true for describing a fertiliser?

  1. Used in large quantity

  2. Organic in nature

  3. Does not cause pollution

  4. Produced in factories
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fertilizer is a natural or an artificial material that is used in agriculture to grow the crops. Fertilizers are mixed with soils for the better growing of crops and to supply minerals and nutrients to plants. Fertilisers may be organic and inorganic. Fertilisers are mainly made up of horse manure and cow dung.

So, the correct option is 'Produced in industries'.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

.......... contains large quantities of organic matter and also supplies small quantities of nutrients to the soil.

  1. Manure

  2. Water

  3. Seeds

  4. Roots
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Manure is an organic substance produced by the decomposition of plant and animal wastes in the presence of microorganism and used as fertilizers because it contains nutrients such as nitrogen, that are trapped by bacteria in the soil. Manure contains large quantities of organic matter and also supplies small quantities of nutrients to the soil.


Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Fertilizer are used for _______

  1. Ensure good vegetative growth (leaves, branches and flowers),

  2. Giving rise to healthy plants

  3. All of the above

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fertilizers provide essential nutrients like nitrogen, phosphorus, and potassium, which are necessary for overall plant health, vegetative growth, and reproductive development.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Fertilizers gets washed away due to 

  1. Excessive irrigation

  2. Not fully absorbed by the plants

  3. Above A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fertilisers, chemically synthesized substances which are rich in plant nutrients such as NPK. They are artificially made but have a rapid response. Fertilizers are any solid, liquid or gaseous substances that are applied to the soil, directly on the plant (foliage) or added to aqueous solutions (as in fertigation) to maintain soil fertility, improve crop development, yield and/or crop quality. Sometimes fertilizers get washed away due to excessive irrigation and are not fully absorbed by the plants. Overuse of fertilisers can cause negative effects like loose soil fertility, bioaccumulation etc.

Thus, the correct answer is option C.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Fertilizers should be applied carefully in terms of .......... , for their complete utilisation.

  1. Proper dose

  2. Time

  3. Observing pre- and post-application precautions

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fertilisers, chemically synthesized substances which are rich in plant nutrients such as NPK. They are artificially made but have a rapid response. Overuse of fertilisers can cause negative effects like loose soil fertility, bioaccumulation etc. Fertilizers should be applied carefully in terms of proper dose, time, and observing pre and post-application precautions for their complete utilisation.

Thus, the correct answer is option D.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Why is organic manure considered better than fertilizers?

  1. It cannot be prepared in fields

  2. It is less rich in plant nutrients

  3. It improves the fertility and texture of the soil

  4. It decreases the water holding capacity of the soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Organic manure or organic fertilizer is made up of organic biodegradable waste like animal excreta and agriculture wastes. As it biodegradable it cannot harm the environment and increase the soil fertility it is better than chemical fertilizer. But chemical fertilizers are nutrient specific and prepared in chemical factories. Thus, the correct answer is option C.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Which of the following materials of biological origin are commonly used to maintain and improve soil fertility?

  1. Green manure

  2. Biofertilizers

  3. Bioinsecticides

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Green manure and biofertilizers maintain and improve soil fertility. Green manure is prepared by the waste leaf from the plants. The waste leaf of the plant is mainly dumped in the soil which is further decomposed by bacteria of the soil.

Biofertilizers are prepared by the strains of microorganism which fix the essential nutrients for the soil.
So, the correct answer is option D.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Chemical derived from urea-melonic acid and used in inducing sleep is

  1. Diazepam

  2. Benzodiazepine

  3. Barbiturate

  4. Amphetamine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Diazepam is sold under the trade number of Valium. It belongs to family of benzodiazepines which are a type of tranquilizers. It is derived from urea and melonic acid. It is taken by mouth or injected intravenously. It produces a calming effect and used to treat anxiety, seizures and muscular spasms. It has sedative effects and thus, used before medical procedures. It is also used to treat insomnia i.e. lack of sleep because it induces sleep. 
So, the correct answer is 'Diazepam'.