What makes farming possible in Central Asia's dry climates?

A. annual floods

B. irrigation systems

C. seasonal droughts

D. tropical storms

With all of the sun's energy striking the earth every second of every day, why doesn't the earth overheat and kill all life living on it?

Who was the first alchemist

Under certain conditions, can rocky soils behave like liquid and flow?

Which best describes the Silk Road?

How are igneous rocks formed? View Available Hint (s) How are igneous rocks formed? Igneous rocks are produced by the weathering and transport of pre-existing rocks. Igneous rocks are formed by the cooling and crystallization of molten rock.

The different plants that replace earlier varieties in the wake of a brush fire is an example of A. plant succession. B. photosynthesis. C. soil regeneration. D. plant community.

Would first nation people be for or against the windmills?

Which mineral property describes a mineral's resistance to being scratched A) streak B) fracture C) cleavage D) hardness

How was the great rift valley formed?

Which African crop has come to supply nearly 70 percent of the worlds heroin