.
Environmental Science Practice Sheet
Introduction
Welcome to the Environmental Science practice sheet! In this sheet, you will learn about the basics of Environmental Science and practice your knowledge with examples and practice problems. Let's get started!
What is Environmental Science?
Environmental Science is the study of the environment and how it works. It includes the study of the atmosphere, land, water, and the organisms that live in them. It also includes the study of how humans interact with the environment and how our actions can affect the environment.
The Atmosphere
The atmosphere is the layer of gases that surrounds the Earth. It is made up of several different gases, such as nitrogen, oxygen, and carbon dioxide. The atmosphere helps keep the Earth's temperature stable and protects us from harmful radiation from the Sun.
The Land
The land is the solid surface of the Earth. It is made up of rocks, soil, and other materials. Plants grow in the soil, and animals live on the land. Humans use the land for farming, building homes, and other activities.
The Water
Water is an essential part of life on Earth. It covers about 70% of the Earth's surface. Water is found in oceans, rivers, lakes, and other bodies of water. It is also found in the atmosphere in the form of clouds and rain.
The Organisms
Organisms are living things. They can be plants, animals, fungi, or even microscopic organisms. All organisms need food, water, and air to survive. They also need a place to live, which is provided by the environment.
Human Interaction with the Environment
Humans interact with the environment in many ways. We use the land for farming, building homes, and other activities. We use the water for drinking, washing, and other activities. We use the air for breathing and other activities. We also use the organisms in the environment for food, medicine, and other activities.
Examples
Name two gases that make up the atmosphere.
Answer: Nitrogen and oxygen.
What is the percentage of the Earth's surface that is covered by water?
Answer: 70%.
Name one way humans interact with the environment.
Answer: Using the land for farming, building homes, and other activities.
Practice Problems
What is the name of the layer of gases that surrounds the Earth?
Answer: The atmosphere.
Name two organisms that live in the environment.
Answer: Plants and animals.
What is the percentage of oxygen in the atmosphere?
Answer: 21%.