Look up for example The rain forest and the desert then tell how they are different
They show that there was an ocean over the plains long ago, and fossils are always used to elaborate on the history of life/how it developed.
The Earth is roughly a sphere. The Earth is an irregularly shaped ellipsoid.
We are more intellegent than adults
The given information is expressed in ratio. However, a ratio is basically a fraction. So, 4:10 is just equal to 4/10 or 2/5 in simplified terms. Similarly, 12:20 is just equal to 12/20 or 6/5 in simplified terms. The smaller ratio is 2/5 because the numerator is less than the denominator. So, it follows that the answer is less than 1. The other ratio has a much greater numerator. So, we would expect that that would be greater than 1.