Chapter-18 Pollution of air and water exampler

Explanation:

The survival of the aquatic organisms is affected by an increase in level of nutrients in the water. These nutrients are essential for the growth of algae, and when these algae die, they become food for bacteria and other organisms that break down food, using up a lot of oxygen in the water. The oxygen level drops as a result, which may cause aquatic life to die. 

Explanation:

The methods by which water becomes contaminated are as follows: 

● Garbage is disposed of in the water by people. 

● Numerous industries directly discharge their harmful chemicals into streams and rivers.

● In agricultural practices, chemical fertilizers, pesticides, and weed killers dissolve in the water and washed away from the fields into water bodies. 

● Household activities directly discharge untreated sewage into the water supply.

Explanation:

Pollutants in the air are causing the white marble at the Taj Mahal to turn a concern. The marble has begun to corrode as a result of acid rains brought on by rising air pollution. The marble has become yellowed as a result of suspended particles like the soot produced by the Mathura oil refinery. As a result, the Taj Mahal's beauty fades.

Explanation:

To lessen air pollution, I can do the following: 

● As much as possible, I will take public transportation. 

● I will raise people's awareness of the need to lessen air pollution.

● I will plant more plants and trees because they reduce air pollution and help keep the environment clean. 

● I won't drive short distances in a car.

Explanation:

Good morning, respected teacher, and cherished friends. Global warming refers to the ongoing rise in earth's temperature. The primary causes of global warming are air pollution and the excessive heat that is trapped by greenhouse gases. Due to the numerous health issues it causes, global warming poses a threat to life. Global warming may have dire repercussions for us. All of that is friends. I appreciate your attention. Good morning! 

Explanation:

The Greenhouse effect basically means that the earth environment is getting warmer. At the point when the sun's beam fall on the planet, a piece of radiation that falls on the earth is consumed by it and a section is reflected once more into space. These radiations are caught in the atmosphere's greenhouse gases, which prevent heat from leaving. This contributes to the survival of our planet by keeping it warm. This effect is caused by the gases CO2, methane, and CO.

Explanation:

Sulphuric acid and nitric acid are produced when sulfur dioxides and nitrogen dioxides react with water vapor in the atmosphere. The downpour becomes acidic as these acids catch it. This is known as acid rain. 

Acid rain has the following effects: 

● It makes metals corrode more. 

● It harms structures and sculptural materials. 

● It depletes the soil of essential nutrients like calcium. 

● It directly affects crops and plants. 

● In humans, it causes skin eruptions. 

Explanation:

Air is composed of 78% nitrogen, 21% oxygen, and 0.03% carbon dioxide. Other gases like neon, argon, methane, and water vapor, among others are also found in sporadic amounts. Nitrogen oxide, sulfur oxide, carbon monoxide, and other noxious substances that harm living and non-living things can contaminate this air, is allegedly polluted.

Explanation:

The following measures would assist our town in ensuring that all of its residents have access to clean water: 

● Tablets containing chlorine ought to be available. 

● periodic thorough cleaning of the water tank. 

● The sewage pipes shouldn't come into contact with the water supply pipes.

Explanation:

This is not true; transparent, clean water is always safe to drink. They might carry microorganisms that can cause diseases. Purifying water before drinking is therefore recommended. 

Explanation:

Air pollution is the presence of undesirable substances in the air that harm both living and nonliving things. 

Explanation:

When substances like silt, toxic chemicals, sewage, etc., which when they mix with water and cause harm to life, the water is said to be polluted.

Explanation:

To create technology that makes use of: 

● Energy from renewable sources like the sun, wind, and other sources and get the most out of them. 

● Fewer non-renewable energy sources to extend their lifespan.

Explanation:

● Fertilizers and pesticides have an effect on the soil's quality. 

● Animal overgrazing harms the soil by eating the vegetation. 

Explanation:

The term "clean air" refers to air that is free of harmful gases and particles. It does not affect living or non-living things. However, polluted air contains harmful pollutants that affect both living and inanimate objects. 

Explanation:

Air pollution is exacerbated by vehicles emitting large amounts of carbon dioxide, carbon monoxide, nitrogen oxides and smoke. 

Explanation:

Because of nursery impact, the temperature on earth is kept up with. Consequently, life on Earth has been possible.

Explanation:

Electrostatic precipitators are installed in treatment plants to remove tough particles such as carbon from flue gases before they are released into the environment.

Explanation:

In 1985, the Ganges Action Plan was announced to save the Ganges. The aim is to reduce pollution by treating domestic wastewater, building electric crematoriums, and reducing industrial waste. 

Explanation:

Numerous industries pollute water by releasing harmful chemicals into rivers and streams. Chemicals like arsenic, lead, and fluorides are released into the rivers by oil refineries, paper mills, textile factories, and sugar mills.

Explanation:

Crop yield is increased by fertilizers, but the chemicals dissolve in water and are washed into water bodies from the fields. They pollute ground water as they seep into the ground.

Explanation:

Groundwater is contaminated with untreated sewage. Since it contains microscopic organisms, infections, growths and parasites, it can cause sicknesses like cholera, typhoid and jaundice.

Explanation:

Rainwater conservation is the goal of water harvesting. By allowing rainwater from buildings' roofs to flow into a deep trench in the ground, this is accomplished. The level of the ground water is raised in this manner. It is prohibited for rainwater to enter rivers.

Explanation:

Air pollution is prevented by automobiles equipped with catalytic converters. It changes the destructive exhaust gases like carbon monoxide and nitrogen dioxide into hurtful carbon dioxide, nitrogen and water. 

Explanation:

The earth's atmosphere is referred to as a "green house" because it functions like a transparent glass greenhouse in which sunlight cannot escape but plants' infrared radiation can. Global warming is caused by the inability of heat to escape from carbon dioxide. 

Explanation:

Pollutants like nitrogen dioxide and sulfur dioxide are released by the industries. Sulfuric acid and nitric acid are produced when these gases react with atmospheric water vapor. These catch the downpour, making the downpour acidic. We are harmed by acid rain because it damages crops, trees, and buildings. 

Examples: 

● Affects landmarks like the Taj Mahal. 

● Hinders the development of plants. 

● Causes people's eyes to become irritated.

Explanation:

Water and wind are two major contributors to soil erosion: 

● Deforestation as a result of growing populations and industrialization.

● Large animal populations' overgrazing has resulted in the destruction of vegetation and barren land. 

● Ploughing, a poor farming technique, loosens the soil and depletes its natural resources. 

Explanation:

The gradual rise in the average temperature of the earth's atmosphere is known as global warming. The increased greenhouse effect is to blame for this. 

Deforestation, human activity, and industrialization are all contributing to an increase in atmospheric carbon dioxide levels that is causing global warming. If it continues at this rate, it is anticipated that ocean water levels will rise and glaciers will melt. 

Explanation:

The following actions can be taken to reduce air pollution: 

● For the vehicles, use CNG or unleaded fuel. 

● Avoid crackers this Diwali. 

● Utilizing alternative energy sources rather than fossil fuels. 

● By growing the number of trees. 

● By putting dried leaves in a compost pit rather than burning them.

Explanation:

● Sulfur dioxide and nitrogen dioxide are gaseous pollutants released by petroleum refineries. 

● Sulfur dioxide is released when coal is burned in power plants. 

● Power plants release microscopic particles. 

● Particles from industrial processes end up in the air as well.

Explanation:

Water can be made safe for drinking : 

● At home, a candle-shaped filter is used to filter it.

● By sterilizing the water by boiling it., 

● By adding bleaching powder or tablets containing chlorine.

● Iodine or ozone gas can be used. 

● Some water treatment systems use ultraviolet rays.