Which is true about scientific models? A they never change B they must be true for at least 10 years C they will be modified with new new observations and data D hey are generally the work of one scientist

What is venus's diameter in scientific notation?

How would a drought effect a youthful river

Which of the following is not a challenge of life on land? a. toxic effects of oxygen c. energy demands of walking b. variable air temperature d. moisture loss

How many cities are there in the united states?

How long does it take for light from a star that is 8 light years away to reach Earth? 08 earth minutes 16 earth minutes 8 earth years 16 earth years

N 1991, what prompted a huge uprising in the Balkans causing ethnic squabbles and general tension?

Factors that contribute to people becoming refugees?

How does a large body of water, such as an ocean, influence climate

The number of elected officials who are African Americans a) has risen dramatically at all levels of government b) has grown at local and state levels, but not federal c) has been shrinking since 1990 d) Grew after 1964 until about 1990 and then

The Richter scale a) works well for very large earthquakes. b) measures the size of an earthquake in terms of the damage it does (its intensity). c) is today termed a local magnitude (ML) reading.