Question

Questions:

1 . What is acid rain and effect of acid rain?
2. Suggest four preventive measures for air pollution.
3. What are natural reasons/causes for water pollution?

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Answer 1

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1 . What is acid rain and effect of acid rain?

Ans : When acid rain and dry acidic particles fall to earth, the nitric and sulfuric acid that make the particles acidic can land on statues, buildings, and other manmade structures, and damage their surfaces. The acidic particles corrode metal and cause paint and stone to deteriorate more quickly

2. Suggest four preventive measures for air pollution.

• Avoid smoking indoors (but quitting smoking is the best answer for overall health).
• Avoid smoking indoors (but quitting smoking is the best answer for overall health).Use craft supplies in well-ventilated areas.
• Avoid smoking indoors (but quitting smoking is the best answer for overall health).Use craft supplies in well-ventilated areas.Make sure your gas stove is well-ventilated.
• Avoid smoking indoors (but quitting smoking is the best answer for overall health).Use craft supplies in well-ventilated areas.Make sure your gas stove is well-ventilated.Minimize clutter.
• Avoid smoking indoors (but quitting smoking is the best answer for overall health).Use craft supplies in well-ventilated areas.Make sure your gas stove is well-ventilated.Minimize clutter.Remove carpeting if possible.
• Avoid smoking indoors (but quitting smoking is the best answer for overall health).Use craft supplies in well-ventilated areas.Make sure your gas stove is well-ventilated.Minimize clutter.Remove carpeting if possible.Use a dehumidifier and/or air conditioner to reduce moisture.

3. What are natural reasons/causes for water pollution?

Natural phenomena such as volcanoes, algae blooms, storms, and earthquakes also cause major changes in water quality and the ecological status of water. Water pollution is a major global problem.

Answer 2

Answer:

1. What is Acid Rain?

Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.

Effects of Acid Rain :

When acid rain and dry acidic particles fall to earth, the nitric and sulfuric acid that make the particles acidic can land on statues, buildings, and other manmade structures, and damage their surfaces. The acidic particles corrode metal and cause paint and stone to deteriorate more quickly. They also dirty the surfaces of buildings and other structures such as monuments.

The consequences of this damage can be costly:

(a) damaged materials that need to be repaired or replaced.

(b) increased maintenance costs.

(c) loss of detail on stone and metal

statues,monuments and tombstones.

2Ans. Actions You Can Take to Reduce Air Pollution:

Follow these Tips Every Day to Reduce Pollution:

(a) Conserve energy - at home, at work,

everywhere.

(b) Look for the ENERGY STAR label when buying home or office equipment.

(c) Carpool, use public transportation, bike, or walk whenever possible.

(d) Follow gasoline refueling instructions for efficient vapor recovery, being careful not to spill fuel and always tightening your gas cap securely.

(e) Consider purchasing portable gasoline containers labeled “spill-proof,” where available.

(f) Keep car, boat, and other engines properly tuned.

(g) Be sure your tires are properly inflated.

(h) Use environmentally safe paints and cleaning products whenever possible.

(I) Mulch or compost leaves and yard waste.

(j) Consider using gas logs instead of wood.

3Ans. Water Pollution Causes :

The causes of water pollution vary and may be both natural and anthropogenic. However, the most common causes of water pollution are the anthropogenic ones, including:

(a) Agriculture runoff :

carrying fertilizers, pesticides/insecticides/herbicides and other pollutants into water bodies such as lakes, rivers, ponds). The usual effect of this type of pollution consists of algae growing in affected water bodies. This is a sign of increased nitrates and phosphates in water that could be harmful to human health.

(b) Storm water runoff :

carrying various oils, petroleum products, and other contaminants from urban and rural areas (ditches). These usually forms sheens on the water surface.

(c) Leaking sewer lines :

may add trihalomethanes (such as chloroform) as well as other contaminants into groundwater ending up contaminating surface water, too. Discharges of chlorinated solvents from dry-cleaners to sewer lines are also a recognized source of water pollution with these persistent and harmful solvents.

(d) Mining activities :

mining activities involve crushing rocks that usually contain many trace metals and sulfides. The leftover material from mining activities may easily generate sulfuric acid in the presence of precipitation water.

(e) Accidental leaks and spills :

associated with handling and storage of chemicals. They may happen anytime and, although they are usually contained soon after they occur, the risk of polluting surface and groundwater still exists. An example is ship accidents such as the Exxon Valdez disaster, which spilled large amounts of petroleum products into the ocean.

Explanation:

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