What causes two distinct pressure zones between the equator and the poles?

a. the troposphere interacts with the stratosphere
b. gravity
c. the coriolis effect
d. ionospheric interactions with radiation

What is one benefit of a nonrenewable resource, such as natural gas? a. generate large amounts of electricity b. less expensive overtime c. produces pollution d. will run out eventually

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.

Which organ controls breathing? lungs alveoli heart diaphragm