What are Ecosystems?
all the living thing and nonliving things in an environment and the many ways they interact.
Ecosystem
it occurs when 2 or more living things need the same resources in order to survive
competition
resources that can be replaced
Renewable resources
process of rocks in Earth's crust slowly being broken into smaller pieces
Weathering
a break or crack in rocks where Earth's crust can move suddenly.
fault
all the members of one species that live within an area of an ecosystem.
population
resource that exists in limited amounts or is used faster than it can be replaced in nature.
non renewable resource
process of carrying away weathered bits of rock.
erosion
the place underground where the earthquake begins.
focus
it is an ecosystem covered with grass.
grassland
are resources made from organisms that lived long ago.
Fossil fuels
the rapid downhill movement of a large amount of rock and soil.
landslide
area or place where an organism lives in an ecosystem.
habitat
Coal is a nonrenewable resource.
True or False
True
a natural land feature on Earth's surface.
landform
What do we call an ecosystem with frozen ground beneath the surface all year long?
Tundra
periods of unusually low rain or snowfall.
drought