Explanation:
Thyroid disease occurs when the thyroid (a small, butterfly-shaped gland in the front of your neck) does not produce the right amount of thyroid hormone. These hormones control how your body uses energy.
An -NH2 group is an AMINO group.......
All the deserts are found at 30<span>°N because
</span><span>Hot air from the equator rises, then cools, moisture is lost, and the dry air comes down at 30 degrees north and south</span>
The purpose of the Open Door Policy was to collaborate with other nations to maintain a common price level for free trade in China. The Open Door policy started in 1899. The correct answer is B.
