What element is a diamond composed of?
What season is between winter and summer?
What instrument do you use to measure wind speed?
What type of scientist studies microscopic plants and animals?
What is the name of the submerged fringe of a continent?
What ongoing process allows water to be constantly recycled?
When a meander is cut off, what is formed?
78% of the earth's atmosphere is composed of which gas?
What happens to the pressure of water as depth under the water increases?
What is the hardest mineral known on Earth called?
What does the Saffir-Simpson scale measure?
Intensity Of Hurricanes
What is the study of plant life called?
What is the height of the sea's surface generally called?
What is the formal name for climate studies?
What is a plant with no internal system of tube like structures called?
Approximately what fraction of the Earth's air is made up of oxygen?
What word means "the shakes that come after the earthquakes"?