Water Cycle
Carbon & Nitrogen cycle
Changes In Ecosystems
Biome characteristics
Water Ecosystem characteristics
100
the continuous movement of water between the earths surface and the air changing from liquid to _____ to liquid
What is gas
100
what percent of your body is carbon.
What is 18%
100
what is the second type of natural change caused by ________ ?
What is organisms
100
_________ is a sandy or rocky biome.
What is desert
100
how much percent of the water is not fresh water
What is 97%
200
something that flows, across lands surface, and is not absorbed will flow into rivers, lakes, and streams.
What is precipitation
200
What is in an important element in every living thing?
What is Carbon
200
when the last member of a species dies, it becomes_______.
What is extinct species
200
a taiga covers the distance across russia a length about _______.
What is 10,000 km
200
little ______ is able to penetrate.
What is sunlight
300
a watershed is an area which water is _______.
What is drained
300
what is another key element for all organisms?
What is nitrogen
300
about how many species are expected to become extinct each year.
What is 1,000
300
what biome is large, and treeless?
What is tundra
300
shallow water allows ________ to penetrate.
What is sunlight
400
some water will settle _______ and become ground water?
What is underground
400
nitrogen can be fixed by lighting volcanic and _______ .
What is combustion
400
After many years this community may become a ________?
What is Grassland, Prairie
400
Many plants have _______ to live in the Taiga.
What is adapted
400
the third zone is the _________ zone.
What is oceanic
500
Evaporation is the changing of a ________ into a gas.
What is liquid
500
plants and other _______ organisms take in carbon dioxide soil
What is photosynthetic
500
the decaying material adds ________ to the soil.
What is Nutrients
500
A _________ is one of the earth's major land ecosystems with its own characteristics, animals, plants, soil, and climate.
What is Biome
500
A hot humid biome near the equator with heavy rainfall and a wide variety of life.
What is Tropical rainforest
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