Water Cycle
This process happens when the Sun heats water and changes it into water vapor.
What is evaporation?
This happens when harmful substances enter the air, water, or soil.
What is pollution?
This is the process of cutting down and removing large numbers of trees.
What is deforestation?
This natural cycle moves water between Earth's surface and the atmosphere.
What is the water cycle?
Plants take in this gas from the air during photosynthesis.
What is carbon dioxide?
This process happens when water vapor cools and changes into liquid water.
What is condensation?
Overusing fertilizers, industrial spills, and improperly throwing away waste can all cause this type of pollution.
What is soil pollution?
People often clear forests to make room for these, including farms, roads, and cities.
What are homes, buildings, and farming/agriculture?
This chemical element moves through rocks, soil, water, and living things in its own biogeochemical cycle.
What is phosphorus?
When too many nutrients enter a lake, algae may grow rapidly and harm fish by reducing oxygen in the water. This is an example of...
What is an algal bloom?
Rain, snow, sleet, and hail are all examples of this stage of the water cycle.
What is precipitation?
These are gases and tiny particles released from manmade and natural sources
What are emissions?
This method of harvesting trees allows forests to CONTINUE growing and meeting people's needs.
What is sustainable forestry?
Sunlight, wind, and trees are examples of these resources, which can be naturally replaced or replenished.
What are renewable resources?
This type of harmful precipitation can form when certain air pollutants mix with water in the atmosphere.
What is acid rain?
Plants release water vapor into the atmosphere through this process.
What is transpiration?
Animals can be injured or killed when they swallow this waste or become tangled in it.
What is plastic waste?
When forests/habitats are cleared, animals may lose their homes and food sources. This environmental problem is called...
What is habitat loss?
This is a nutrient that is available in limited amounts and can restrict the growth of organisms.
What is a limiting nutrient?
Some air pollutants trap heat in the atmosphere and contribute to this long-term rise in Earth's average temperature.
What is global warming?
These are the four main stages of the water cycle: water changing into vapor, vapor cooling, water falling from clouds, and water gathering.
What are evaporation, condensation, precipitation, and collection?
When too many nutrients enter lakes and oceans, algae can grow rapidly, use up oxygen, and harm aquatic life. This is called an...
What is an algal bloom?
Replanting trees, carefully harvesting timber, and recycling paper are ways to accomplish this goal.
What is sustainable forestry?
Forests help regulate the water cycle through transpiration and help move this important nutrient through ecosystems.
What is nitrogen?
Food, water, space, and nutrients are limited resources. When one population grows too quickly, this happens among organisms and can upset the balance of an ecosystem.
What is competition for resources?