The answer is D because the others are talking about the paintings themselves and not the figures
C is the answer to ur question
Africa’s flora is dictated by the local climate, and its natural vegetation is, therefore, very varied – from fertile rainforests where rain falls virtually every month of the year to arid desert landscapes where years can pass without rain.
Even deserts have plants which not only survive, but flourish. Cactuses, for example, have very thick skins to hold in moisture and thorns to stop animals from eating them. Succulents also protect their swollen leaves of water with spines or sometimes with toxins.
Explanation: However, to work efficiently, one side of the mirror requires twice the amount of light that the other side is receiving. In this way, the darkened side can see through the brightly-lit side but not vice-versa. This is also a reason because of which the glass is called one way glass.
One-way mirrors are coated with a half-silvered layer,allowing the mirror to reflect half the light that strikes its surface. ... The name half-silvered comes from the fact that the reflective molecules coat the glass so sparsely that only about half the molecules needed to make the glass an opaque mirror are applied.
