Tag: environment and conservation

Questions Related to environment and conservation

Read the passage and answer the following questions:
Six pairs of bald vulture were released into the wild in Germany. Four of the pairs of birds successfully nested and raised young. Two of the pairs nested near an industrial complex that released waste products (PCBs) into a nearby lake. These birds laid eggs, but the embryos failed to develop.
Which of the following is the least likely reason for the failure of the embryos to develop?

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Mutations in the embryos halted their development.

  2. The adult birds failed to exhibit proper nesting behavior and did not care for the eggs.

  3. The contaminated lake water that the birds consumed affected the development of their young.

  4. The sperm of the males were affected by the PCBs in such a way that they were unable to fertilize the eggs.

  5. Germany is not a good location for bald eagles to mate and reproduce.

Show answer
Correct Option: E
Explanation:

The release of waste products into the nearby lake caused various problems which led to the failure of the embryo development. This can happen because of the following reasons:

  • The chemicals released from the factory caused some mutations in the embryos which led to the failure in development.
  • The birds might not have taken care of the eggs and they might have failed to exhibit proper nesting behavior.
  • The chemicals in the contaminated lake water might have affected the development of the birds.
  • The chemicals from the lake might have affected the sperms of the males and so they were unable to fertilize the eggs. Thus, the correct answer is option E.

For clean environment, which one is not essential?

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Producer

  2. Polluter

  3. Consumer

  4. Decomposer

Show answer
Correct Option: B
Explanation:

The producer is required initially for the availability of organic food. The consumer will consume the organic food prepared by the producer and will also make an equilibrium in the environment by being a part of the nutrient cycle. A decomposer will breakdown the dead organic from the dead bodies of producer and consumer. So, these are required in a functional ecosystem. The presence of polluter is undesirable as it would distort the environment, making it difficult for the biotic and abiotic components to keep their sustenance.

Hence, the correct answer is 'Polluter'.

Which of the following statements are correct ?


(I) Benzene hexachloride (BHC) is a non-biodegradable pollutant.
(ii) Anthropogenic air pollutants are natural in origin.
(iii) Carbon monoxide is a primary air pollutant.
(iv) Sulphur dioxide causes brown air effect during traffic congestion in cities.

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. (i) and (iii)

  2. (i) and (ii)

  3. (ii) and (iii)`

  4. (ii) and (iv)

Show answer
Correct Option: A
Explanation:

Anthropogenic air pollutants are man-made pollutants like emissions, burning of fossil fuels, mining, etc. Sulpur dioxide is produced in large quantities during the smelting of metallic ores and the burning of petroleum and coal in industries and by motor vehicles. It is cause of acid rain

Many marine animals use carbonates dissolved in sea-water to make their shells. Which of the following component is reduced in our atmosphere by this biological phenomenon?

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Oxygen

  2. Calcium carbonate

  3. Carbon dioxide

  4. Nitrogen

Show answer
Correct Option: C
Explanation:

Shell of many marine organism are made of calcium carbonate. Carbonate is formed when carbon dioxide (CO2) from atmosphere get react with the sea water. It also help us to maintain carbon dioxide level in the atmosphere because today scenario is very alarming due to increasing level of carbon dioxide. 

So, the correct option is 'Carbon dioxide'.

Major causes of air pollution are:

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Combustion of natural gas, coal, petroleum

  2. Welding, stone crushing, agriculture burning

  3. Both A and B

  4. None of the above

Show answer
Correct Option: C
Explanation:

Major causes of air pollution are combustion of natural gas, coal, petroleum, automobiles, aircraft, railways, thermal plants, welding, stone crushing and agriculture burning

So, the correct answer is 'Both A and B'

Which of the following pollution involves eutrophication?

evs - i the environment and us air pollution and its effects environment and conservation environmental pollution and industries threatened species need of conservation conservation of soil and wild life

  1. Water pollution

  2. Noise pollution

  3. Air pollution

  4. None of the above

Show answer
Correct Option: A
Explanation:
 Eutrophication is when a water body is induced by unnecessary growth of algae. Eutrophication results in declining the quality of water and in reducing dissolved oxygen in water bodies. Eutrophication is divided into two types - natural and cultural. 
Example, addition of excessive fertilizers to the fields will lead to their accumulation into a nearby water body during run-offs
So, the correct answer is 'Water pollution'

The direct discharge of pollutants into water bodies leads to

evs - i the environment and us air pollution and its effects environment and conservation environmental pollution and industries threatened species need of conservation conservation of soil and wild life

  1. Water pollution

  2. Soil pollution

  3. Air pollution

  4. All of the above

Show answer
Correct Option: A
Explanation:

Water pollution is the mixing of contaminants to the water bodies (e.g., lakes, rivers, oceans, aquifers and groundwater) which changes the desired quality of water. Water pollution affects the entire biosphere, plants and organisms living in these bodies of water.

Water pollution causes damage to the

evs - i the environment and us air pollution and its effects environment and conservation environmental pollution and industries threatened species need of conservation conservation of soil and wild life

  1. Humans only

  2. Entire ecosystem

  3. Plants only

  4. None of the above

Show answer
Correct Option: B
Explanation:

Water pollution affects the entire biosphere, plants and organisms as all the life forms depend on water for their survival. In almost all cases, the effect is damaging not only to individual species and population but also to the natural biological communities. 

The unfavourable alteration of environment due to human activities is termed as

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Ecological disturbance

  2. Catastrophe

  3. Ecological degradation

  4. Pollution

Show answer
Correct Option: D
Explanation:

Pollution is the addition of contaminants into the natural environment that can cause undesirable change. It may be the chemical and physical change. Pollutants are the contaminants that cause pollution.

So, the correct answer is option D.

Fine organic or inorganic particles suspended in air is called as

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Particulate pollutant

  2. Gaseous pollutant

  3. Aerosol

  4. None of the above

Show answer
Correct Option: C
Explanation:

Fine organic or inorganic particles suspended in air is called as aerosol particulate matter. It consists of soot, flash, and dust of various types, fur, hair, spores etc. It is classified into settleable and suspended particulate matter.