Tag: sources of waste

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Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

The process of laterization results into

  1. Degradation of soil

  2. Formation of humus

  3. Mineralization of humus

  4. Formation of soil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Laterization is degradation of soil. They occur in the hot, rainy tropics where chemical weathering proceeds at a rapid rate. These soils are acidic, which are deficient in lime, magnesium, phosphorous and potassium but rich in iron and aluminium. It support growth of tea, coffee, rubber cardamon and paddy.
Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Which of the following is used to speed up the rate of degradation of a contaminant?

  1. Biological augmentation

  2. Biostimulation

  3. Biosensor

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

Biological augmentation or bioaugmentation is the process of addition of bacterial cultures to speed up the rate of degradation of a contaminant. It is also called as biological augmentation.

Thus, the correct answer is option A.

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Which of the following is the source of soil pollution?

  1. Oil and fuel dumping

  2. Nuclear wastes

  3. Coal ash

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

When the wastes are disposed of in the ground, there is leaching of the chemicals from the waste. This results in the soil pollution and contamination of the groundwater. The oil and fuel, nuclear wastes and the coal ash are dumped by making pits in the ground. This results in the loss of the fertility and quality of the soil. 

Thus, the correct answer is option D. 

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Which of the following can be used for microbial digestion of certain organic chemicals which causes soil pollution?

  1. Biosensor

  2. Bioaugmentation

  3. Bioremediation

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

Bioremediation means cleaning of the environment of organic chemicals with the help of microbes, plant and animal species. The organisms involved in bioremediation are of two types, hyperaccumulators and detoxifying. Hyperaccumulators are used in bioprospecting and removal of minerals from wastes. The detoxifying agents metabolize the harmful chemicals through various biochemical reactions.

Thus, the correct answer is option C.

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Soil salinity affects the plant growth by

  1. Reducing the roots ability to extract water from the soil

  2. Reducing the rate of flowering

  3. Reducing the rate of ripening

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

Soil salinity may be due to the presence of soluble salts in the soil water. This causes salt stress. Due to the presence of salts, the rate of absorption of water is decreased. The absorption of the water with salts may cause cell injury because the water is evaporated as transpiration. There is an accumulation of the salts which may result in cell injury. Hence, the plant will prevent the uptake of salt water and there will be a reduction in the water absorption.

Thus, the correct answer is option A. 

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Which of the following method helps in conservation of soil?

  1. Plant windbreaks

  2. Practice contour farming

  3. Reduce impervious surfaces

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

Planting windbreaks, practicing contour farming, and reducing impervious surfaces are all established methods for preventing soil erosion and maintaining soil health.

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Soil pollution can cause 

  1. Soil infertility

  2. Land degradation

  3. Change is structure of soil

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

Soil pollution leads to a variety of negative outcomes, including the loss of nutrients (infertility), physical erosion or contamination (degradation), and changes in the chemical and biological composition of the soil.

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Why industrial waste contaminates the soil?

  1. They adversely affect the fertility of soil

  2. They change the colour of the soil

  3. They change the pH of the soil

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

Soil pollution is caused by the addition of substances and factors which decrease its productivity. It is caused by agrochemicals, industrial wastes, municipal wastes etc. It adversely affects the fertility of the soil. The industrial waste lingers in the soil surface for a long time and makes it unsuitable for use by changing the pH of the soil. Pesticides and herbicides are used in agricultural practices and these chemicals penetrate into the soil and change the pH of the soil, affecting its fertility.

Thus, the correct answer is option D.

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Which of the following can be related to both soil and air pollution?

  1. Intensive farming

  2. Acid rain

  3. Leaching

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

Acid rain is the secondary effect of air pollution. The gases like sulphur dioxide and nitrogen oxide when in high concentration in the air, mix with the air moisture in clouds and form sulphuric and nitric acids. These acids come down to the earth in the form of acid rain-causing much damage to the living organism and buildings. Acid rain pollutes water and soil both. When the rain droplets get mixed with nitrogen and sulfur oxide it causes acid rain. this acid rain when fall on earth reacts with soil because of chemicals present in acid rain, the fertility of particular area gets affected.

Thus, the correct answer is option B.

Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Which of the following diseases may be caused by soil pollution?

  1. AIDS

  2. Tetanus

  3. Syphilis

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

Tetanus is caused by the bacterium Clostridium tetani, which is commonly found in soil, dust, and manure. Contaminated soil can introduce these bacteria into the body through wounds.