Felix told his dad that Earth's different spheres contributed to different stages in the water cycle. He showed his dad that water travels through all the spheres. Felix also showed him that the total amount of water on Earth has stayed the same. Why has the total amount of water in the water cycle remained constant?

A. More water vapor condenses to keep the cycle in balance.
B. More precipitation falls than can evaporate and condense.
C. The rate of precipitation and evaporation are in balance.
D. The rate of evaporation competes with the balance of precipitation.

What field of science did harry hess study?

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

How many chromosomes are in a gold fish?