resources that replace themselves naturally
renewable resources
bodies of dust and frozen gases in space
comets
flat or gently rolling lands
plains
to reuse something is to ___________ it
recycle
the earth's seven large landmasses are called ______
continents
earth elements used by humans but not made by them
natural resources
Compared to other planets in the solar system, Earth ranks ______- in size.
A.fifth
B.first
C.third
D.last
A. fifth
a group of islands
archipelago
resources or goods brought into one country from another
imports
a narrow piece of land that connects two large landmasses
isthmus
the process that breaks down rocks (there are two types)
weathering
The deepest part of the ocean is
A.Mount Everest
B.Mariana Trench
C.Indian Ocean
B. Mariana Trench
North America and South America are in the ________ hemisphere.
Western
the value of a natural resource is determined by
A.its cost
B.its use and supply
C.the economic system of the country its found in.
B. the use and supply
the changing of water into a vapor or gas
evaporation
water lying beneath the earth's surface that supplies wells and springs
groundwater
Of all the planets, Earth is _______ from the sun.
Third
a landform that is higher than the surrounding land and has at least one steep side is called a _______.
plateau
Fossil fuels are valued today, in part because they
A.provide energy for running machines
B.promote interdependence among countries
C.are renewable and can be used without conserving
A.provide energy for running machines
the air that surrounds the earth
atmosphere
the part of earth where life is found
biosphere
Oceans, lakes, rivers, and other bodies of water make up a part of the earth called the ____________.
hydrospehere
The earth's ocean floors consist of A.plains B.many kinds of landforms C.only two kinds of landform D.only seamounts
B.many kinds of landforms
Most natural resources are A.evenly distributed over the earth B.not evenly distributed over the earth
B. not evenly distributed
shallow areas near the coasts of continents
continental shelves