Why are grassland and forest soils good for farming?
a.
a layer of permafrost prevents the decay of organic material that enriches the soil.
b.
too much water promotes chemical weathering and washes away nutrients.
c.
there is enough water to promote chemical weathering, but not enough to wash away nutrients.
d.
there is not enough rainfall to promote chemical weathering or retaining nutrients.

I believe the answer is C. Grasslands and forests do not have permafrost--present in tundra and taiga so A can be eliminated. B  is not right because forests and grasslands definitely do not get TOO much rain, assuming they're not talking about tropical rain forests. 

1. when the tempature rises,your sweat glands and then springs into action making perspiration. some sweat evaporates with your skin taling heat with it.2.some of the blood pumped by the heart travels by your lungs to get rid of carbon dioxide and pick up oxygen.3.saliva produces by, you drinking water which saliva is 98% of. when mucus builds up in your body it also creates saliva as well as, antibacterial compunds.4.when the core body tempature drops, the shivering reflex is triggered to maintain homeostasis. for example: when you get out the pool you start to shiver because it is cold.

No that answer is wrong. you have written the function of mitochondria in chloroplast and function of chloroplast in mitochondria.