Answer: False
Explanation:
Most rivers don't have gentle gradients in the upper course or headwaters, rather most rivers always have steep gradient in their upper course. The upper course of a river is known as the headwaters region. But in their downstream regions, most rivers usually have relatively gentle gradients.
jupiter is fastest and venus is slower
Our experiences, environment and even genetics form our beliefs and attitudes. In turn, these beliefs influence our behaviour, and determine our actions. Beliefs that are widely accepted become part of our culture and, in many ways, shape the society we live in.
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The answer is B. Polynesia I hope I'm not too late or if I am I could aide those who need this answer. :)
The biosphere is all living things on earth