Question

Life cannot originate from inorganic materials at
present because of
(a) a very high amount of oxygen in the
atmosphere
(b) very low atmospheric temperature
(c) absence of raw materials
(d) high degree of environmental pollution

Answer 1

Answer is option "a & c"

Explanation:

• In the nature, life originates by the interaction of abiotic components. So life cannot originate from inorganic material at present because of absence of raw material.The primitive atmosphere of earth was reducing atmosphere with little or no oxygen but was rich in water vapour, carbon monoxide, carbon dioxide, nitrogen and hydrogen.
• UV light, high temperature and lightening served as sources of energy for chemical reactions between primitive gases to form simple inorganic elements such as water, ammonia, methane and cyanides.
• So, the right answer is option a & c " a very high amount of oxygen in the atmosphere &  absence of raw materials".