Question

How has 75%of water on earth helped in the maintenance of life on earth​

Answer 1

Water is one of the most important resources gifted to us after air. It forms the basis of life for every living organism on earth. Life without water is unimaginable and impossible. This is the sole reason why finding traces or signs of water is an important criterion of planetary exploration. Life on earth probably would not have even begun if not for water.

Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.

• Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.Water is used in everyday life, for drinking, farming, construction, agriculture, industries, hospitals, water cycle to name a few
• Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.Water is used in everyday life, for drinking, farming, construction, agriculture, industries, hospitals, water cycle to name a fewWater boosts metabolism, helps in blood circulation
• Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.Water is used in everyday life, for drinking, farming, construction, agriculture, industries, hospitals, water cycle to name a fewWater boosts metabolism, helps in blood circulationHelps create saliva and provides oxygen to cells of the body
• Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.Water is used in everyday life, for drinking, farming, construction, agriculture, industries, hospitals, water cycle to name a fewWater boosts metabolism, helps in blood circulationHelps create saliva and provides oxygen to cells of the bodyIt houses different aquatic creatures
• Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.Water is used in everyday life, for drinking, farming, construction, agriculture, industries, hospitals, water cycle to name a fewWater boosts metabolism, helps in blood circulationHelps create saliva and provides oxygen to cells of the bodyIt houses different aquatic creaturesUsed as a means for transportation

Answer 2

Answer:

Without water our planet would be a barren wasteland.

Explanation:

Water makes up 60-75% of human body weight.

A loss of just 4% of total body water leads to dehydration, and a loss of 15% can be fatal. Likewise, a person could survive a month without food but wouldn’t survive 3 days without water. This crucial dependence on water broadly governs all life forms.

Water is directly involved in many chemical reactions to build and break down important components of the cell. Photosynthesis, the process in plants that creates sugars for all life forms, requires water. Water also participates in building larger molecules in cells. Molecules like DNA and proteins are made of repetitive units of smaller molecules. Putting these small molecules together occurs through a reaction that produces water. Conversely, water is required for the reverse reaction that breaks down these molecules, allowing cells to obtain nutrients or repurpose pieces of big molecules.