Which of the following is a factor that determines the composition of magma?

a. color
b. viscosity
c. texture
d. elasticity

Write a 150-word essay describing the effect of people's activities on the environment in the region.

How do ocean currents affect temperature? check all that apply. they carry cold water from the poles to the equator and cool air over land. they flow north and then south below the equator. they flow south and then north above the equator. they move warm water from the equator to the poles and heat air over land. they move east to west and create prevailing winds. they move west to east and create seasonal winds.

Amountain created from tectonic activity would be considered which type of landform ? a) primary landform b) secondary landform