About 96% of sea water is made of what?

Which of these is a way that mining benefits society A:generating acid rain B:providing industrial materials C:producing acid mine drainage D: creating heavy metal pollution

Choose the correct statement about the seasons. The Earth's orbit around the Sun is a highly eccentric ellipse, so the distance between Earth and Sun varies dramatically over the course of a year. Earth is the only planet that experiences seasons.

Name three population characteristics that tell us whether a country's population is changing (whether growing, stable, or shrinking)

By referring to first, second and third order landscape elements explain how you would recognize a sports complex on a vertical aerial photograph?

A stone is dropped from the edge of a roof how long it take to fall 4.9m

What are the most wide spread Paleozoic fossils?

Less developed nations are to extended families as more developed nations are to nuclear families. matrilineal families. families of procreation.

If star a has an apparent magnitude of - 6 and star b has an apparent magnitude of 5, which star is brighter in our sky?

What is one advantage of free trade?

Explain how the shading of the direct light of the sun causes a lunar eclipse.