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P
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- 1_________________ the introduction of harmful materials into the environment.Pollution
- 2Harmful materials are called ___________.pollutants
- 3___________- chemical poisons used to kill weeds and insectsPesticides
- 4When air pollutants such as nitrogen oxide and sulfur dioxide mix with moisture, they change into _________.acids
- 5Acids fall back to earth as ___________.acid rain
- 6Greenhouse gases such as carbon dioxide and methane absorb sunlight reflected from Earth, preventing it from escaping into space. By trapping heat in the atmosphere, they keep Earth warm enough for people to live. This is called ____________.the greenhouse effect
- 7The increase in worldwide average temperatures is called _____________.global warming
- 8Chemicals and oils from factories are sometimes dumped or seep into waterways. These chemicals are called ________.runoff
- 9_____________ is material added to soil to make plants grow larger and faster.Fertilizer
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- Fichas sobre P, creado por Tamara Kot el 14/09/2021.
- Creado por
- Tamara Kot
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