The total number of eclipses each year does not exceed

What can be found in a deep natural cave

An astronaut finishes some work on the outside of his satellite, which is in circular orbit around the earth. he leaves his wrench outside the satellite. the wrench will:

A rock permanently changes shape by bending or folding during

Which of the following causes the iron in the earths core to be solid? low temp. high pressure the low temp and the high pressure the lack of water

The average annual rainfall in Dubuque lowa is 36 inches. If the rainfall contains 0.5 ppm of nitrogen, how much nitrogen is added to the soil in Dubuque in an average year?

Physical environments can change the way we live: we may change our behaviors, habits, or traditions based on our surroundings. We also choose physical environments that best fit our needs and our culture.

Charge-coupled devices (CCDs) are used in which of the following gadgets? A. mouse B. keyboard C. monitor D. scanner

A star with a continuous spectrum shines through a cool interstellar cloud composed primarily of hydrogen. The cloud is falling inward toward the star (and away from Earth). Which best describes the spectrum seen by an Earthbound observer

Where does most seismic activity occur?

The map shows latitudes and longitudes of Australia. Which city is located at approximately 35°S, 149°E? Sydney Melbourne Canberra Adelaide