The valves stop the blood from flowing backwards
Answer:
<h2>100°C is the boiling point of water in degrees Celsius</h2>
The darkening of the atmosphere caused by meteorites would have reduced the sizes of some ecosystems due to less solar energy being available to plants.
<h3>
What is Solar energy?</h3>
This is the form of energy which is derived from the sun and is usually trapped by plants during photosynthesis.
Plants being primary producers will have less photosynthetic activity thereby leading to less food production and oxygen availability.
Read more about Meteorites here brainly.com/question/7993266
BF3 acts as a Lewis acid when it accepts the lone pair of electrons that NH3 donates.
Answer:
Explanation:
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In this case, since the equation for the calculation of dilutions is:
Whereas M is the molarity and V the volume, because the final concentration is lower than the initial. Thus, since we are asked to calculate the final volume, we solve for V2 as follows:
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