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.
State that the most frequently occurring chemical elements in living things are carbon, hydrogen, oxygen and nitrogen. State that a variety of other elements are needed by living organisms, including sulphur, calcium , phosphorus, iron and sodium. State one role for each of the elements mentioned above. 1  Nitrogen: Required by proteins. 2  Calcium: The mineral that strengthens bone and teeth uses calcium. 3  Phosphorus: Part of the phosphate groups in ATP and DNA molecules.  Iron: found in the structure of hemoglobin and essential for the production of red blood cells.
The ozone layer is important for any forms of life, because it  protects any organisms from pernicious activities of ultraviolet  sun rays. The extinction of ozone might lea â¦ d to death of some kind  sensitive organisms, which are important food link on the Earth.4 people found this useful.he ozone layer is important for any forms of life, because it  protects any organisms from pernicious activities of ultraviolet  sun rays. The extinction of ozone might lea â¦ d to death of some kind  sensitive organisms, which are important food link on the Earth. 4 people found this useful.