A great or sudden misfortune resulting in the destruction of life and property
The continuous absence of rain, dry weather
The vibration in the earth caused by the sudden movement of the plates in the earth's crust
The exchange of goods and services using money
Area in which organisms in an environment interact with each other
A shape that resembles an elongated circle. It is the shape of the planet's orbit
Referring to an object's orbit in space
The legal process of making slaves free
One who leaves his or her country to settle in another
Everything around us including natural and man-made resources
The point on the earth's surface directly above the focus of an earthquake
An imaginary line or great circle around the earth at latitude 0 degrees. It divides the earth into the northern and southern hemisphere
The wearing away of the earth by wind or water
Goods manufactured in one country and sold in other countries
A break or crack in the earth's crust along which volcanoes and earthquakes often occur