Some methods of encourage erosion. cutting lumber
faulting
identifying rocks
swimming

Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert

Largest layer of atmosphere international space station orbits ultraviolet radiation causes ionization the phrases describe what layer of earth's atmosphere?

Suppose that the sun shrank in size but that its mass remained the same. what would happen to the orbit of the earth?