1. B, 2. B, 3. B..............
The rigid social structure of India was made up of different Varnas in a Caste System. This Caste System was a class system based on heredity.
<span>Washington took advantage of the war between Britain and France. Because the Continental Army was warring with the British, he saw a potential ally in France. He sent Benjamin Franklin as an ambassador to France. Washington recruited France as an ally, and France came to America to help fight the British.</span>
Perceptual adaptation
ability to adjust to changed sensory input, including an artificially displaced or even inverted visual field.
This is true.
I hope that is what you were looking for.