What country in East Asia is currently threatened by the expansion of its desert in its western regions?

Which type of rock is primarily the result of weathering and erosion? a. igneous b. sedimentary c. metamorphic d. volcanic

Which of the following does not identify a unique date for which the celestial co-ordinates of the Sun can be determined? Vernal equinox Full Moon Autumnal equinox Summer solstice

During the fall (autumnal) equinox, where does the North Pole face? Answer:

A defining characteristic of sympatric speciation is Group of answer choices a. The appearance of new species in the midst of old ones b. Asexually reproducing populations c. Geographic isolation. d. Artificial selection e. Large populations

A majority of the world's energy comes from which sources?

What do you often find in sedimatary rocks?

Changes to the earth that can be explained by plate tectonics include all the following except ___ Earthquakes, erosion, mountain ranges, volcanoes

Iron: A. is forming today in the Great Lakes region as banded-iron formations (BIFs). B. is stronger and weighs less than aluminum. C. was the first of the common metals (iron, aluminum, and copper) to be used by humankind. D.

Glacier store about 70% of the worlds freshwater true or false

What economic system would promote people buying more products and technology?