UNIVERSE
LIFE IN THE SOLAR SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
All life uses H2O or Hydrogen and Oxygen independently
|
|
|
Water is on the only planet that we have found life on
|
|
|
Where there is water, there is usually life present
|
|
|
All of the above
|
Detailed explanation-1: -Water is essential for life because: Water forms the major component of a living organism. It plays a vital role as all the metabolic processes required for growth and development requires a liquid medium. Most of the reactions occur when the substances are in the dissolved state.
Detailed explanation-2: -Liquid water is an essential requirement for life on Earth because it functions as a solvent. It is capable of dissolving substances and enabling key chemical reactions in animal, plant and microbial cells. Its chemical and physical properties allow it to dissolve more substances than most other liquids.
Detailed explanation-3: -All living things, from tiny cyanobacteria to giant blue whales, need water to survive. Without water, life as we know it would not exist. And life exists wherever there is water. All organisms, like animals and plants, use water: salty or fresh, hot or cold, plenty of water or almost no water at all.
Detailed explanation-4: -Living organisms need water because it plays a vital role in the reactions taking place within organism’s cells and body. Water acts as a universal solvent, providing a medium for the chemical reactions to occur. Substances are also transported from one part of body to the other in the dissolved state.
Detailed explanation-5: -Everything in our body is transported from one part to the other in a dissolved form. Almost all the cellular processes take place in aqueous medium. In fact, all the reactions that take place within our body occur in the aqueous medium only. Hence, water is essential for life.
Detailed explanation-6: -Water is essential for all living things. Water’s unique density, high specific heat, cohesion, adhesion, and solvent abilities allow it to support life.
Detailed explanation-7: -In fact, without water, life on Earth would have never begun. Acting as a medium in which organic compounds could mix with one another, water facilitated the formation of the planet’s first life forms, possibly even protecting them from the sun’s radiation.