Write an account to describe the atmosphere that prevailed on the earth when first life arose.

The part of the earth and atmosphere supporting life is

Following are the statements regarding the origin of life (A) The earliest organisms that appeared on the earth were non-green and presumably anaerobes (B) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which one of the following options is correct

Atmosphere of earth just before the origin of life consisted of

Following are the two statements regarding the origin of life : i. " " The earliest organisms that appeared on the earth were non-green and presumably anaerobes. ii. " " The first autotrophic organisms were the chemoautotrophs that never relesed oxygen. Of the above statements which one of the following options is correct ? a. (ii) is correct but (i) is false b. Both (i) and (ii) are correct c. Both (i) and (ii) are false d. (i) is correct but (ii) is false

The first life evolved in the earth around____cores years ago.

This question has Statement I and Statement II. Of four choices given after the Statements choose the one that best describes two statements Half life of a reactant following first order kinetics is independent of concentration. Statement-II: The time required to complete any definite fraction of the first order reaction is independent of the initial concentration.

This question has Statement I and Statement II. Of four choices given after the Statements choose the one that best describes two statements Statement-I : Half-life of a first order reaction does not depend on the initial concentration of the reactant. Statement-II t_(1/2)=(2.303log_10 2)/k

A famous relation in physics relates moving mass m with the rest mass m_(0) of a particle in terms of its speed v and the speed of light c. This relation first arose as a consequence of special relativity by Albert Einstein. A boy recalls the relation almost correctly but forgets where to put the constant c. He writes : m=(m_(0))/((1-v^(2))^(1//2)). Guess where to put the missing c.

In 1953 S.L. Miller created primitive earth conditions in the labortory and gave experimental evidence for origin of first form of life from pre-existing non-living. Organic molecuels. The primitve earth condition created include.