The abyssal plains are predominantly made of igneous rocks as their basic layer, more specifically, basalt from the oceanic crust with which they are underlined with. The basalt is an igneous rock, it is a dark, fine grained volcanic rock.
Children represent 24 percent of the population, but they comprise 34 percent<span> of all people in poverty.1 Among all children under 18 years of age, </span>45 percent<span> live in low-income families and approximately one in every five (</span>22 percent) live in poor families.
Answer:
Extremely powerful, (What i would say)
Explanation:
Ozone layer depletion was not noticed until 1979, while CFC’s have been around since 1920s because CFCs take time to enter the stratosphere and remain there for at least 60 years after their initial release.
Option: A
Explanation:
Ozone layer is found in stratosphere. Ozone plays a dual role in the environment. When it is in the ground surface zone it is a harmful gas but when its in the atmosphere it is a life saving layer which absorbs UV rays and protect human beings and animals from the harmful affect of poisonous gases.
Though ozone layer started depleting from 1920. But it came into notice from 1979 as CFCs take time to enter the stratosphere and remain there for at least 60 years after their initial release.
