An important property of air circulation is

a. warm air is denser than cold air.

b. cold air and warm air have the same density.

c. cold air is denser than warm air.

d. air has no mass.

Where would you be Most likely to find the oldest rocks on earth? At the outer edges of oceanic rust. In the middle of the highest mountain In the middle of the oceans In the middle of the continents At which type of plate boundary do tectonic

Fossils provide evidence for evolution, and often intermediate forms. One example of an evolutionary intermediate is Odontochelys, a Triassic-aged turtle with teeth. What does this early turtle tell us about evolution of the turtle shell?

The largest employer of cartographers is the

Rohit lives in a nuclear family. he has 4 members in his family. They already have 2 cars and are planning to buy another car. why shouldn't they buy another car?

Which types of evidence do geologists usually study? Check all that apply. a. location of Earth in outer spacewaves that move through Earth b. interactions between living things on Earth c. mineral composition of Earth's layers d.

What statement about rainforests is false?

How many offers were made ro the palestinians to create their own átate

Which area of rivers and streams will most likely contain the most sediment? a. the source b. the mouth c. the middle portion d. none of the above

Three economic principles of natural resource management are 1) Opportunity Cost; when you make a choice, you lost the opportunity to choose other things 2) Time preference; how fast you can wait for a return on your investment 3) Discount rate;

Acid rain is a serious problem in China. true or false?