Answer:
Green design
Explanation:
The word ‘Green’ represents designs which are eco friendly and less harmful to humans and other organisms. It helps in the protection of natural resources such as water, air etc.
Green Design are also referred to as techniques and materials that reduce the negative environmental impact of a structure.
Answer: Option (A) is the correct answer.
Explanation:
Force acting on a dam is as follows.
F =
.......... (1)
Now, when we double the depth then it means H is increasing 2 times and then the above relation will be as follows.
F' = 
F' =
........... (2)
Now, dividing equation (1) by equation (2) as follows.
=
Cancelling the common terms we get the following.
=
4F = F'
Thus, we can conclude that if doubled the depth of the dam the hydrostatic force will be 4F.
Acids and bases ionoze the water. so it would have to be A