Describe the effects on global food webs if the suns energy could no longer reach earth

In general how does the characteristic mineral composition of a light colored igneous rock differ from that of a dark colored rock

Of all the kinds of life changed when the old and new worlds met, which of the following had the greatest impact? A) Domesticated animals B) New Crops C) Religion D) Germs and Disease

alfred wegener was the scientist who suggested that the 7 continents were once one big land mass. He compared them to

Week #14 Is the answer greater than or less than 6?

Describe why the effects of a volcanic eruption in a richer area of the world are different from the effects of a volcanic eruption in a poorer part of the world.

A father and his two sons need to cross a river in their small boat. The father weighs 100 pounds and each of his sons weigh 50 pounds each. The boat can carry a maximum of 100 pounds. All three must cross inside the boat and no can get wet.

One of these countries doesn't fit in with the rest. Can you figure out which one?

The parallels measure direction from

Texas is the second-largest state in the nation in both geographic area and population. Once a sovereign republic, the state of Texas maintains an international border with Mexico.

Most of australia has what type of climate?