Question : Living organisms have been on Earth for how much per cent of Earth's history?
Option 1: 80%
Option 2: 20%
Option 3: 60%
Option 4: 40%
Correct Answer: 80%
Solution : The correct option is 80%.
Earth is estimated to be around 4.54 billion years old. The earliest evidence of life on Earth comes from fossilized microorganisms, which are 3.5 billion years old. Therefore, living organisms have been present on Earth for a significant portion of its history—around 80% of the time since the planet's formation.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : What percentage of Earth’s water is fresh?
Question : What is the percentage of proteins in the cell membrane?
Question : A's salary is 40% of B's salary and B's salary is 25% of C's salary. What percentage of C's salary is A's salary?
Question : In 1950-51, what percentage of the GDP of India was contributed by the industrial sector?
Question : A's salary is 35% more than B's salary. How much percent is B's salary less than that of A's? (correct to the nearest integer)
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile