Climate Change

2. a period of unusually dry weather that causes significant shortages of water for ecosystems and for humans
3. a colorless, odorless gas that is produced when plants, animals, and garbage decay
5. a substance that causes allergies. Examples include dust, mold, and pollen.
7. human actions that respond to climate change in a way that minimizes its effects on ecosystems and on humans.
10. taking actions in order to decrease the amount of greenhouse gases in the atmosphere
11. a gas made up of three atoms of oxygen bonded together. Ozone high in theatmosphere protects the Earth’s surface from harmful ultraviolet radiation from the sun
12. a natural community of plants, animals, and other organisms, and the physical environment in which they live and interact.
14. A large lake or tank for storing water.
15. A disease that affects people’s lungs and makes it difficult to breath
16. any moisture that falls to Earth, such as rain, snow, hail, sleet, or mist.

1. a substance that contaminates the air or water
4. the place in the environment where a plant or animal lives.
6. A method of generating electricity from the energy of moving water.
8. is a mixture of gases, such as nitrogen, oxygen, and carbon dioxide, that surrounds the Earth
9. the current conditions of the atmosphere at a particular place and time
13. the pattern of weather over a long period of time. Weather patterns for about 30 years can be used to describe the climate of a particular place.