Suppose the distance to the moon were twice its actual value. would it still be possible to have a total solar eclipse? why or why not?

2 negative results that came from cultural encounters in east africa

How do the fossils of whales provide evidence that whales have evolved over millions of years?

Why must farmers in the western states of the Midwest irrigate?

Scientists are able to determine the relative age of rocks in specific years. True or false

A star will evolve off the main sequence when it uses up

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.

What problem does russia have with building shipyards in the north

Which of the following important physical features is not located on Antarctica? A. Lake Vostok B. Mt. Cook C. Mt. Erebus D. Vinson Massif