The correct answer is ocean.
Air is a mixture of gases that surrounds the Earth. It is made up of nitrogen (78%), oxygen (21%), argon (0.9%), carbon dioxide (0.04%), and other gases in trace amounts. The atmosphere is the layer of air that surrounds the Earth. It is held in place by the Earth’s gravity. The atmosphere protects the Earth from harmful radiation from the sun and helps to regulate the Earth’s temperature.
Water is a liquid that is essential for life. It is made up of hydrogen and oxygen atoms. Water is found in the Earth’s oceans, lakes, rivers, and glaciers. It is also found in the air as water vapor. Water is a good solvent and can dissolve many different substances. It is also a good conductor of heat and electricity.
Oceans are large bodies of water that cover about 71% of the Earth’s surface. They are home to a wide variety of plants and animals. Oceans play an important role in the Earth’s climate and weather patterns. They also provide a source of food and other resources for humans.
The other options are incorrect because they are not as closely related to water as the ocean is. Islands are small pieces of land that are surrounded by water. Earth is the planet that we live on. Dew is water that condenses on objects on the ground at night.