Some state roads are salted heavily in the winter, creating an environmental problem. explain how organisms could be harmed by high levels of salt from roadways.

It can effect how freshwater organisms filter water in and out of their bodies.

Explanation:

When the salt gets into lakes and streams, it dissolves into sodium and chloride ions, which, I'm pretty sure, clogs up the water that the organism is filtering through it's body.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.