Answer: Since the industrial revolution, human activities have also resulted in an increase in natural greenhouse gases, especially carbon dioxide. An increase in these gases in the atmosphere enhances the atmosphere's ability to trap heat, which leads to an increase in the average surface temperature of the Earth.
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Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive
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you are correct sir. It is a controlled experiment
Explanation:
The ancestors of birds were most likely arboreal.
<span>Having gliding surfaces is advantageous in arboreal animals because it means less likelihood of dying due to a fall. You'll notice that plenty of arboreal animals today have gliding surfaces. </span>
<span>In the ancestors of birds, the gliding surface just happened to stretch from the "fingers" down to the body, setting up for control of the glide, and for further refinement with elongation of the fingers and arms. With this, the animals were not just saving their lives when falling, they could glide from one tree to another to look for food. </span>
<span>A similar process likely happened in the ancestors of bats. </span>
<span>Don't ask me about pterosaurs or insects, 'cause I don't know.</span>
