Geologists have divided Earth's history into time units, which are largely based on

a. climates.

b. magnetism in rocks.

c. evidence of erosion.

d. fossils

Knox County is able to draw fresh water from the Lewis and Clark Lake over and over. Describe the possible interactions of Earth's systems that keep water flowing into the lake.

Which bodies of water of water border canada? choose all that are correct artic ocean atlantic ocean pacific ocean indian ocean

Approximately how much of Central America's agricultural land is used for cattle grazing?

Which of the following statements best describes changes to the culture of the lnuit people?

As humans continue to use fossil fuels as a primary source of energy, the amount of carbon entering the atmosphere from fossil fuel combustion will continue to increase dramatically.

Trees in deciduous forest do what? A. Shed leaves during one season B. Grow in a warm Mediterranean climate C. Have needlelike leaves D. Grow in a climate that is cold year round

How many miles long is the great wall of china

What landforms are created at convergent boundaries?

In which direction does the Sun appear to move across the sky? Ofrom west to east from east to west from north to south from south to north

What is a planetary nebula neither a planet nor a nebula?