Like you might have studied. Heated hair expands while colder air contracts. So, the sound isn't able to move as efficiently in cold air than it would in warmer air.
Explanation:
Red and yellow bell........... - genetic diversity
A park has....... - species diversity
Five different bird..... - species diversity.
Answer:

Explanation:
In a chemical reaction, the <u>produc</u>ts are <u>produc</u>ed. The <em>react</em>ants are the substances that <em>react.</em>
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In a chemical reaction equation (with the arrow pointing right) the reactants are on the left and the products on the right.
The reactants enter and the products come out.
So, the statement given - products enter a reaction and reactants come out - is false and it is actually the other way around.
Two factors infuence the regions photosynthetic productivity which would be the amount of solar radiation and the availability of nutrients because solar radiation is needed as well as nutrients which keeps the plant healthy
hope this helps (:
Photosynthesis is when a plant converts sunlight into energy, and cellular respiration is when cells convert food into energy.