How hydrosphere is essential for maintaining life on earth
Answers
- The hydrosphere is the total amount of water on earth; This includes water on the surface of the planet, underground, and in the air. The hydrosphere is important for multiple reasons.
- One being water is a part of living cells. Without water, cells wouldn't be able to carry out their normal functions and life wouldn't exist.
- Water also provides a habitat. The majority of the earth is covered in water, harboring thousands of life forms (both plants and animals) that depend on water to survive.
- Water also helps to regulate climate as well as provide for humans as we need to stay hydrated to survive.
- Overall, water is essential to survival, and because our planet is made up of more water than land, it plays a big role in the lives of living creatures and things.
thus, hydrosphere is essential for maintaining life on earth.
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It is so easy sometimes to take our hydrosphere for granted and we seldom take the time to really think about the role that this part of the planet plays in keeping us alive. Below are just some of the important functions of water in the hydrosphere:
Water is a part of living cells Each cell in a living organism is made up of almost 75% water, and this allows the cell to function normally. In fact, most of the chemical reactions that occur in life, involve substances that are dissolved in water. Without water, cells would not be able to carry out their normal functions and life could not exist.
Water provides a habitat The hydrosphere provides an important place for many animals and plants to live. Many gases (e.g. CO2, O2), nutrients e.g. nitrate (NO−3), nitrite (NO−2) and ammonium (NH+4) ions, as well as other ions (e.g. Mg2+ and Ca2+) are dissolved in water. The presence of these substances is critical for life to exist in water.
Regulating climate One of water's unique characteristics is its high specific heat. This means that water takes a long time to heat up and also a long time to cool down. This is important in helping to regulate temperatures on earth so that they stay within a range that is acceptable for life to exist.Ocean currents also help to disperse heat.
Human needs Humans use water in a number of ways. Drinking water is obviously very important, but water is also used domestically (e.g. washing and cleaning) and in industry. Water can also be used to generate electricity through hydropower.Source.