Tropical rain forests cover a small part of the planet yet they contain more species of plants and animals than all other biomes combined

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

What are two examples of conduction that we use everyday