Resource that exists in Earth’s crust in a fixed amount and can be replaced only by geological, physical or chemical processes that take hundreds of millions of years.

Natural heating of Earth’s surface by certain atmospheric gases, which helps keep Earth warm enough to sustain life.

Which of the following are considered fossil fuels?

Which of the following is NOT a greenhouse gas?

_______ is the study of the Earth’s climate and the factors that affect past, present and future climatic changes.

Forests are cleared to make way for any of a long list of agricultural products and other human activities. The removal of trees from a forested area without adequate replanting, often using clear-cutting, which may result in a loss of topsoil and water pollution is known as ______________ .

Acid rain is any precipitation with a pH of less than 5.0.

Urban area where the climate is warmer than in the surrounding countryside due to factors such as numerous concrete buildings and large expanses of asphalt.

The Köppen Climate Classification System, a widely used classification system developed by German botanist-climatologist Wladimir Köppen, defines climatic boundaries based on the mean monthly values of wind and precipitation, as well as types of vegetation.