The Earth reaches its perihelion (the point in its orbit when it is closest to the sun) during the month of January (around January 3rd currently), which falls durin â¦ g the season of winter in the northern hemisphere.
The most important combination of elements for all living organisms is water which is made up of hydrogen and oxygen. Another very important compound for living organisms is glucose which constitutes Carbon, oxygen and hydrogen. Nitrogen is an important part of proteins. Water, proteins and glucose are the most important things for living things and all these compounds are made up of elements which reflects their importance.
Carbon forms the key component for all known life on Earth. Complex molecules are made up of carbon bonded with other elements, especially oxygen, hydrogen and nitrogen, and carbon is able to bond with all of these because of its four valence electrons.he most important characteristics of carbon as a basis for the chemistry of life are, that it has four valence bonds, that the energy required to make or break a bond is at an appropriate level for building molecules, which are stable and reactive.