Most of that stuff is concrete—humanity’s favorite building material—followed by gravel, bricks, asphalt, and metals. If current trends continue, these manufactured materials will weigh more than twice as much as all life on Earth by 2040, or about 2.2 trillion tons.

Minerals are solid materials of Earth’s crust. Minerals are made of chemical elements. Some minerals are made of one element (atom).

Natural resources are materials from the Earth that are used to support life and meet people’s needs. Any natural substance that humans use can be considered a natural resource. Oil, coal, natural gas, metals, stone and sand are natural resources. Other natural resources are air, sunlight, soil and water.

Natural Resources A natural resource is anything in nature that humans need. Metals and fossil fuels are natural resources. But so are water, sunlight, soil, and wind.

Many materials or substances used or created at work could harm your health. These substances could be dusts, gases or fumes that you breathe in, or liquids, gels or powders that come into contact with your eyes or skin.

Very toxic materials are substances that may cause significant harm or even death to an individual if even very small amounts enter the body. These materials may enter the body in different ways (called the route of exposure). The most common route of exposure is through inhalation (breathing it into the lungs).

The Six Toxic Chemicals that Cause Air Pollutants

• Carbon Monoxide. Carbon monoxide is a very toxic pollutant that forms when there is a lack of oxygen to make carbon dioxide.
• Ozone.
• Lead.
• Nitrogen dioxide.
• Particulate matter.
• Sulfur dioxide.

Reduce, reuse, recycle, or properly dispose of the wastes.

1. Reduce the amount of hazardous products you buy.
2. Use less hazardous products if you can.
3. Reuse products if it’s safe to do so.
4. Recycle whenever possible.
5. Always properly dispose of hazardous waste.

Common Substances

• Formaldehyde.
• Mercury.
• Lead.
• Asbestos.
• Hazardous/Toxic Air Pollutants.
• Per- and Polyfluoroalkyl Substances (PFAS)
• Pesticide Chemicals. Glyphosate.
• Polychlorinated Biphenyls (PCBs)

Metals. Heavy metals are known to pose a considerable health risk in the waste management sector. More than 30 different metals have been detected in the incinerated ash of unsorted urban waste, and most of these metals, such as arsenic, cadmium, chromium, lead, and mercury, are harmful to human health.

10 Steps to Avoid Toxic Chemicals

1. Make Your Own Cleaning Products.
2. Avoid Fragrance.
3. Give Your Personal Care Products a Makeover.
4. Go “BPA-Free”
5. Quit the Quats.
6. Choose Alternatives to Plastics (where possible)
7. Keep Harmful Chemicals Out of the House.
8. Turn Down the Heat on Non-Stick Cookware.

How to protect yourself from chemicals

1. If your house was built before 1978, ask an adult to have it tested for lead.
2. Wash your hands often, and always before eating and sleeping.
3. Use cold water for drinking and cooking.
4. Make sure you eat foods that have lots of calcium, iron, and vitamin C.
5. Eat less fatty foods because they can make you absorb more lead.

Promoting Clean Air in Your Community: Tips for Air Quality Awareness Week

1. Get the most out of your car by keeping it well-maintained.
2. Reduce emissions even more with eco-friendly modes of transportation.
3. Recycle and compost to divert waste from landfills.
4. Conserve energy to reduce power plant emissions.

Buying a car that has greater fuel efficiency. Turning off lights and appliances when they are not in use. Using energy efficient light bulbs and appliances. Buying fewer things that are manufactured using fossil fuels.

How to reduce air pollution?

1. Plant more trees and nurture the ones present.
2. Minimize Pollution from Cars by using Electric Vehicles, Carpooling, Keeping Car well serviced.
3. Using environment friendly vehicles like bicycle to cover short distances.
4. Using alternate sources of energy like solar energy rather than burning fossil fuels.

Answer: Pollutants like sulphur dioxide and nitrogen dioxide liberated into the air by industries reacts with water vapour in air to form sulphuric acid and nitric acid. These acids come down as rain, called acid rain.

Water pollution can be caused in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources of water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

4)Fertilisers and pesticides are used to increase crop production. These are washed by rain water into water bodies and pollute them. 5)Leakage of petroleum oil during drilling and shipping operation results in water pollution. 6)Rain erodes soil and carries silt to water.

Antonyms. decontamination status innocence whiteness pureness.

SYNONYMS FOR kindness 1, 3 benignity, benevolence, humanity, generosity, charity, sympathy, compassion, tenderness. 2 good turn.