Consider the following statements about the evolution of earth and identify the incorrect one s 1 Th...........

Geography Earth Geology

Download Solution PDF

Consider the following statements about the evolution of earth and identify the incorrect one/s

1. The formation and evolution of earth started 4.6 billion years ago.

2. Earth's initial atmosphere consisted of Helium and Methane and hence was unable to support life.

3. The life evolved on land first only when photosynthesis by land based plants flooded the atmosphere with oxygen.

Select the correct answer using the codes given below.

2 and 3 only

1 and 2 only

1 only

1 and 3 only

छोटे Courses बड़े Results

Master Earth Geology

Prepare through Micro-courses

Try Now

Explanation:

First option is correct.
Second statement is incorrect. The early atmosphere was probably mostly carbon dioxide with little or no oxygen. Hence, it was unable to support life.
Third statement is incorrect. The earliest known life forms on Earth are putative fossilized microorganisms found in hydrothermal vent precipitates.