The correct answer is D : United States
All of the other countries on the list have great species diversity, especially Cosa Rica due to it's closeness to the equator and therefore its tropical climate perfectly suitable for wildlife thrive.
But, the United States' territory covers the areas with the mild climate, forests, deserts, canyons and species-rich coastal regions as well as the Hawaii islands with unique species diversity and the Alaskan area with the arctic habitat.
I'm in the car now so can't lookup periodic table. But you find molecular weight of: 1 Ca + 2 Cl
Then that
erosion and weathering.
erosion as in breaking it down, weathering is also a cause of erosion, but in the case of rain, it would carry away the remaining sediments.
Answer : The heat created by the food is, 3971 J
Explanation :
Formula used:
where,
q = heat produced = ?
m = mass of water = 100 g
c = specific heat capacity of water = 
= change in temperature = 
Now put all the given values in the above formula, we get:
Therefore, the heat created by the food is, 3971 J
<h3><u>Answer;</u></h3>
pH = 6.34
<h3><u>Explanation;</u></h3>
pH is given as -log{H+]
But;
pH + pOH = 14
However;
pOH = -log [OH-]
[OH-] = 2.20 × 10−8 M
Thus;
pOH = -log (2.20 × 10−8 M)
= 7.66
But;
pH = 14 - pOH
= 14 - 7.66
<u>= 6.34 </u>
