According to the world-system theory, the world consists of

a. core nations.

c. semiperipheral nations.

b. peripheral nations.

d. all of the above

How is a plateau similar to a plain?

How many high tides and low tides occur each day

While the northern hemisphere is experiening fall the southern hemisphere is experiencing what

Earthquakes, volcanic eruptions, and the building of mountains and ocean basins are events that occur in response to 1. Heat flow from within earth 2. glacial activity on earths surface 3. ocean currents 4.

Describe what water regulation adaptations might have evolved in protists in hypertonic habitats such as great salt lake or in habitats with changing salt concentration.

Solar energy has been used economically for many years to

What country is opposite the United States on the earth

What are the main ethnic groups in the United States and their percentage of the population? What languages are spoken in the United States, and what are those percentages?

Submersible used to study the deep oceans

Which planet has an atmosphere that demonstrates the extreme nature of the greenhouse effect? a. mars b. earth c. venus d. mercury