Scientists are not exactly sure when or where the first modern humans lived. true false

Why is Iceland called the "land of fire and ice"?

One way to determine if a rock sample is metamorphic is by: a. finding fossil evidence c. noting a crystalline structure in its particles b. noticing light and dark color bands d. all of the above

It is impossible to determine the "absolute" ages of sedimentary rocks because none of the grains in these rocks contain radioactive elements. true or false?

In which of the following examples is the farmer utilizing a method of erosion prevention? a. planting crops repeatedly, without putting nutrients or fertilizer back into the soil c.

The growth of sedentary farming throughout history has gently accelerated the pace of technological and social change. True or False?

Why do the North and South pole experience seasons differently than the rest of the planet? Why do they have periods of continuous daylight or continuous darkness?

According to the International Astronomical Union, which of the following is one of the criteria for an object to classified as a Planet? Select all that apply.

What physical features are the five largest cities in the u. S. Near?

Because of his failed economic plan, Mao Zedong later opened China up to foreign trade. True False

Your friend tells you that our orbit is so special that it is at just the right distance from the sun for us to be at the right temperature for life to flourish. He says that if we were even ten miles closer to the sun, we would burn up.