The correct answer is B.
According to the study of human evolution, the first individuals of the genus Homo evolved at approximately 7 million years ago. The general trend of their evolution included an increase of the skull (specifically the cranium) and subsequently the brain size. This, in turn, increased the brain capacity. In addition, hominids evolved to stand upright and walk with their two feet only, a phenomenon called bipedalism. Finally, they started developing and using tools.

8 0

4 years ago

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What is the biggest problem with desalination?

Sholpan [36]

Causes fishermen to lose at least 165 million pound of fish a uear today and 717.1 million pound of potential future catch. Desalted water also puts drinking water supplies at risk because sea water contains chemicals such a boron, taht freshwater does not.

4 0

3 years ago

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The process illustrated here is somewhat different from those we have been studying, because the pressure change is due to chang

Alexxx [7]

Answer:

5.9 × 10^-2 mol.

Explanation:

PLEASE NOTE: The Question is not complete, kindly check the question's comment section for the remaining part of the question and also, the graph(part of the question) below.

The number of moles in this question or problem can be determined or can be calculated as given below. Recall that 1 litre = 1/1000 m^3, The Standard Atmospheric Pressure = 1.013 × 10^5 N/m^2 = 760 mmHg.

Thus, the number of moles = ( 771 / 760 ) × 1.4 × 1.013 × 10^5 × ( 1/1000 m^3).

The number of moles = 5.9 × 10^-2 mol.

[NB: the 1.4 can be traced on the graph]

4 0

3 years ago