It would be a formal region.
You didn't give your choices but sin 21 equals 0.358.
Explanation:
When a parcel of air in the atmosphere becomes saturated with water, precipitation, such as rain or snow, can fall to Earth's surface. That precipitation connects the hydrosphere with the geosphere by promoting erosion and weathering, surface processes that slowly break down large rocks into smaller ones.
<h2>I hope this answers help you :></h2>
The Nile River, The amazon river, the Yangtze River, The Mississippi river/ Missouri River, <span>The Yenisei/Angara/Selenga River</span>
