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.
Basal sliding phenomenon helps glaciers move down the valleys of the southern Alps. Basal sliding is the action of the glacier moving down across the bed because of the melting of water below the ice moving as the lubricant.
Answer:
Rainfall refers to the precipitation which occurs when droplets of water drops from the sky when the clouds become heavy with rain.
What is Annual Rainfall Graph?
This refers to the climatic graph which is used to show the average rainfall which is recorded for a particular rainfall in a given time frame.
With this in mind, we can see that this can be represented on a line graph or on a bar graph and the data are recorded on the same axes.
Please note that your question is incomplete so I gave you a general overview to get a better understanding of the concept.
Read more about annual rainfall here:
brainly.com/question/25642596
Panama is a country that is part of North America geographically, though politically it is put into the Central American region. It is a small country that is located on southernmost tip of the North American land mass. Panama is the country that is bordering the continent of South America on its south. The country is best known for the Panama Canal, connecting the Caribbean Sea (the Atlantic Ocean through it as well) and the Pacific Ocean, giving this country a great strategic importance.
Haiti is a country that is part of the Caribbeans. The country is located on one half of the biggest island in the Caribbeans, Hispaniola, sharing it with the Dominican Republic which occupies the other half of the island. Haiti has both good and bad location. Its location is good because it has nice weather all year long, it is between North and South America, and it is very attractive for tourists. The bad part is that the island is constantly on the way of the hurricanes, usually the most devastating ones, which often manage to cause enormous damage and bug life loss.
Answer:
Lunar phases are given below.
Explanation:
- The Moon Is a natural satellite of earth and has the same rotational motion of earth thus we tend to see the same face every day and each year as the moon has 7-8 phases and each phase is a product of the interaction of the moon with the sun's solar light.
- The first phase is of a new moon i.e the disk is completely invisible to the earth, starts at noon from 6 am to 6 pm. Then comes the waxing crescent period of the moon in which the moon is a 90-degree angle is 0.1% of the sick is visible as a crescent form starting from 9 am to 9 pm.
- The first quarter comes up at midnight and when the moon disk is at 50% visible to the earth and this starts at 6 pm at noon. The waxing gibbous moon occurs at the 3 am to 3 pm and the disk is 50 to 99% lit by the sun.
- Followed by the full moon and which has 100% of the disk visible to earth and usually starts from 6 pm to 6 am. And ret follows when the moon declines its axis from the slope of earth.
