Answer:
A.Bern is the capital city of Switzerland
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.
<u>Answer:</u>
Non conformity is the type of unconformity separating the 2 rock strata.
<u>Explanation:</u>
There are 4 types of unconformities, among which the non conformity is the type of unconformity that separates two rock types while one among them is younger and the other is older. It usually exists between young sedimentary rocks and old igneous or metamorphic rocks. The non conformity refers to the old erosional feature on the underlying rock. It also suggests that, a long term uplift has taken place.
A close relationship with the land. Hope I helped
