Natural Resources
Natural resources are materials from the Earth that people use — water, air, soil, minerals, and fuels. A key skill on the test is sorting these into two groups: renewable resources that nature replaces, and nonrenewable resources that run out. This lesson makes the distinction clear. Continue your GED preparation Practice this skill in GED […]
Climate and the Greenhouse Effect
Weather is what the sky is doing today; climate is the average weather of a place over many years. A major topic in earth science is how climate works and how the greenhouse effect keeps Earth warm — and how too much of it causes warming. This lesson keeps the ideas clear and grounded. Continue […]
