In terms of geologic time, when did humans appear on earth?

The Earth is a unique planet in that it is covered by more than 70 percent water. There are several properties of water that make Earth a suitable environment for life, including how the density of solid water (ice) is about nine percent less than

Which of the following is the highest level of government nation county municipality state or province i think d

How do the factors that affect climate impact where the various ecosystems are located around the world?

Which type of plant is not found in the arctic tundra? 1 grasses 2 conifers 3 mosses 4 lichens

The active sections that are located along fault lines are called

What is the economy of the Mediterranean coast of France based on?

Which nations are run by a prime minister? Canada, Greenland, Mexico, or U. S

The fine for passing a stopped school bus illegally on the right is A. $75 B. $180 C. $265 D.$400

A bullet has a internal velocity of 1000 meters per second 5 seconds later it has a velocity of 500 meters per second what is the acceleration of the bullet

What is biofuel and how are exactly it works?