On a map, which imaginary lines run perpendicular to the equator?

A. longitude

B. latitude

C. isobar

D. contour

Variations in the geometry of the Earth's orbit, first described by the Yugoslavian astronomer Milankovitch, occur over time periods of tens to hundreds of thousands of years.

What is physical water scarcity

Which cultural achievements occured in nothern and southern europe?

In west africa, what are the challenges of living near a desert?

Northwest Territory capital

Some students confuse adaptation with adapting. Clarify the misconception.

List 4 sources of ocean pollution

Russia's population distribution is strongly influenced by ... a. the demands of world trade. b. its ethnic and religious diversity. c. the Pacific Ocean. d. its physical environment.

Which of the following was a contributing factor to the spread of the Depression around the world?

What determines the size of a mineral crystal formed from magma?