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In a soil profile, the bottom horizon is also called horizon D. What makes up this hard layer?
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
What events increased the salinity (salt content) of the ocean?
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
What causes surface waves and surface currents?
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
Deep water currents in the ocean are caused by:
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
Our atmosphere is MOSTLY made of:
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
The mid-ocean ridge is formed during seafloor spreading when two tectonic plates move apart. What kind of boundary is this?
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
What salt mostly makes up the ocean?
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
Within our atmosphere, heat is mostly transferred when warm air or water rises and cool air or water sinks. This is an example of what?
differences in temperature and density
the wind
nitrogen gas
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
divergent
convection currents in the atmosphere
sodium chloride
bedrock
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