SOLAR SYSTEM

Detailed explanation-1: -1. Water. Almost all the processes that make up life on Earth can be broken down into chemical reactions-and most of those reactions require a liquid to break down substances so they can move and interact freely. Liquid water is an essential requirement for life on Earth because it functions as a solvent.

Detailed explanation-2: -The most important parameter for Earth-like life is the presence of liquid water, which directly depends on pressure and temperature. Temperature is key both because of its influence on liquid water and because it can be directly estimated from orbital and climate models of exoplanetary systems.

Detailed explanation-3: -From the mightiest blue whale to the most miniscule paramecium, life as we know it takes dramatically different forms. Nonetheless, all organisms are built from the same six essential elemental ingredients: carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur (CHNOPS).

Detailed explanation-4: -Water’s extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent, ‘’ and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water’s role as a solvent helps cells transport and use substances like oxygen or nutrients.

Detailed explanation-5: -The most important requirement is the presence of liquid water, not only as part of the chemical reactions of life, but also as a medium to transport nutrients and wastes within the organism. The water requirement automatically eliminates many worlds in our solar system.

Detailed explanation-6: -Water is the liquid that makes life on Earth possible. As water cycles from the air to the land to the sea and back again, water shapes our planet-and nearly every aspect of our lives. All living things, from tiny cyanobacteria to giant blue whales, need water to survive.