Sleep. Melatonin is for sleep
The rio grande river starts in the san juan mountains in colorado and continues 1,901 miles to the gulf of mexico.
Language is most likely to connect a cultural region because communication is the key to everything.
Answer:
For the countour part: Map c, contour is 50m (the lines increases/decreases with 50 meters each step). Map b, need to see the whole map to decide.
Answer:
The Tropics receive more direct sunlight, resulting in warmer climates. The Poles receive almost no direct sunlight, resulting in a colder climate.
Explanation:
The tropics and the poles are two totally different regions on Earth. The differences can be seen in pretty much everything, from climate conditions to soil, geography, biosphere, precipitation, human activity, etc. One of the most noticeable and most important differences between the two is definitely the angle at which the sunlight falls.
The tropics are the region that receives sunlight at direct or close to direct angle all year round. This means highly concentrated sunlight and warm or hot weather conditions all year round. The poles are the region that receives sunlight at the lowest angle, having it constantly for around half a year, and then lacking it for half a year. This means very dispersed sunlight which can not warm up the surface and air, so the weather conditions are very cold all year round.
