Write three examples of natural processes mention in the paragraph above:

• Seasons change, climate changes, weathering processes (or recycling of elements such as oxygen, carbon, nitrogen, sulfur, and water; volcanos; earthquakes)

• Photosynthesis, combustion of gasoline, plastic manufacturing

• Internet browsing, car driving, computer programming

• Building bridges, painting houses, baking bread

Write three factors that make an impact on natural processes mentioned in the paragraph above

• Over-population, burning fossil fuels, deforestation

• Recycling, planting trees, using solar panels

• Walking, reading books, listening to music

• Eating fruits, drinking water, sleeping early

Fill in the blank: ________ is the release of gases and smoke and particulate matter into the atmosphere as a result of industrial and domestic combustion.

• Air pollution

• Water pollution

• Soil erosion

• Deforestation

Fill in the blank: ________ is caused by waste products such as harmful chemicals, fertilizers and pesticides, dumped by factories and homes into water bodies, which reduces the amount of pure, fresh drinking water.

• Water pollution

• Air pollution

• Noise pollution

• Soil erosion

Fill in the blank: ________ occurs through harmful chemicals, fertilizers and pesticides which harm bacteria and other organisms, upsetting decomposition cycles of plant and animals.

• Soil pollution

• Photosynthesis

• Evaporation

• Condensation

Fill in the blank: ________ results from removal of trees, grass and plants for construction and other human activity purposes.

• Deforestation

• Afforestation

• Photosynthesis

• Transpiration

Fill in the blank: ________ is in the form of garbage and litter such as plastics, junked automobiles, tires, household goods and electronic waste.

• Solid waste

• Liquid waste

• Gaseous waste

• Radioactive waste

Other kinds of pollution such as ________ in urban areas and ________ from certain electronic devices and waste from nuclear power plants.

• Noise Pollution, Radiation Pollution

• Water Pollution, Soil Pollution

• Thermal Pollution, Light Pollution

• Air Pollution, Water Pollution

According to the examples of environmental pollution, which example makes the biggest impact?

• Air pollution

• Noise pollution

• Light pollution

• Thermal pollution

According to the paragraph above, some animals are at risk of extinction because:

• their habitats are being destroyed.

• they are increasing in number.

• they are being protected by humans.

• they have adapted to new environments.