Answer:
Atmosphere is the envelope of gas which surrounds any celestial body.
Explanation:
The importance of atmosphere of the earth are:-
⇒The presence of the atmosphere plays a significant role in the water cycle. It facilitates the formation of clouds which remains suspended until they are heavy enough to pour down on the earth as rain,hail or snow.
⇒Protects the life forms of the earth from the harmful UV rays of the sun.The presence of the ozone layer does this by reflecting the UV rays of the sun.
⇒ It keeps the temperature of the earth constant so that it is suitable to support life.
⇒It protects the earth from smaller meteors.
⇒ Contains N2O2 and other gases which are necessary to support the life form on the earth.
⇒Facilitates combustion and without the atmosphere combustion is not possible.
Hope this helps
Answer:
Option (A)
Explanation:
The horizon is usually defined as the place where both the sky and ground meets. If the height of the observer is higher, then the horizon becomes more lower and distance increases from the observer to the visible horizon.
The line of horizon is often concealed by the presence of trees, buildings and houses, mountains and land areas.
There are mainly two types of horizon namely, the true horizon and the visible horizon.
Thus, the correct answer is option (A).
Hitler's strategy in Europe was new and was never used before. It was
simply known as "Blitzkrieg". This strategy was basically a very fast
form of fighting where the Germans would overrun the enemy when they
didn't expect it and didn't have enough time to get troops to the battle
zone to defend the area. This new strategy caused Great Britain to
change up their strategy because until then they were never successfully
invaded. Around this time radar was beginning to be introduced and was
being developed by Great Britain to detect air raids from Germany which
occurred frequently. This new strategy also caused Britain to become
more defensive and withdraw troops to save their lives Germany's new
strategy, an example of this would be the Battle of Dunkirk, also known
as the "Miracle of Dunkirk" due to the fact that 300,000 British troops
were saved from Germany. This new defensive strategy usually resulted in
"Stalemates" which basically meant there was no decisive victory for
each side until the United States began fighting for the allied side and
the British started winning.
Cinder cones are the simplest type of volcano. They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone.
At the midpoint of the 20th century the percentage was 75
