Jerusalem straddles what border

At what angle above the horizontal is the sun if sunlight reflected from the surface of a calm lake is completely polarized? note that the angle asked for is the angle from the surface, not the angle from the normal.

Between 1950 and 2000, the number of independent states A. remained the same B. increased slightly C. decreased slightly D. increased significantly E. decreased significantly

The greenhouse effect happens when greenhouse gases like carbon dioxide and methane absorb heat that has been reflected off the Earth and re-radiate this heat back towards Earth. What examples of greenhouse gases are given in the text above?

What are the two best ways to meet energy needs, according to energy experts

Earth is one of the four: A. asteroids in the solar system. B. terrestrial planets. C. gas giant planets. D. dwarf planets.

How did Canada's economy change in the early 1900's

Soil color only reflects the amount of organic matter present in soil.

Use an example to explain why economists measure a country's economic development by its GDP per capita rather than its total GDP.

Significant plate tectonic changes occurred on Earth during the Mesozoic Era.

What is the definition for Longitude?