Answer the following questions:- a) Differentiate between a small scale map and a large scale map. b) What are the advantages of atmosphere? c) I) Define airpressure. II) What is Isohyet? d) Write the difference between aggradation and degradation? e) What is weathering? What are the factors responsible for weathering?
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Answers
Answer:
smaller scale show large geographic area. and larger scale show small area
Answer:
Explanation:
a) A large scale map only shows a small area, but it shows it in great detail. A map depicting a large area, such as an entire country, is considered a small scale map. A small scale map shows more territory, but it is less detailed.
b) The advantages of Atmosphere are:-
==> Protects all living things and the earth from dangerous radiation that is from the sun.
==> The atmosphere keeps us warm. This is called the Green House effect.
==> The atmosphere gives us weather like wind, rain, and snow.
==> Protects us from objects that are coming to earth from outer space.
==> The atmosphere contains a small amount of carbon dioxide which are important to plants.
==>The atmosphere also helps us talk by making us can hear with the air between two people.
c) (i) Pressure exerted by air is called air pressure
(ii) A line on a map connecting points having the same amount of rainfall in a given period is called Isohyet.
d) The difference between aggradation and degradation are :-
==> Aggradation refers to an increase in the base level of a river, whereas degradation refers to a decrease in the base level.
==> Aggradation is more likely to happen in sediment-choked rivers, whereas degradation is more likely to happen in sediment-starved rivers.
==> Aggradation is associated with the deposition of sediment, whereas degradation is associated with the erosion of sediment.
==> Aggradation happens as a river is running out of kinetic energy, whereas degradation happens as a river picks up more kinetic energy.
e) The process of weakening rock and producing a rock waste or soil cover is called weathering.
Factors responsible for weathering are :-
==> A part of rainfall always snips into the soil on the covered rocks and looses the rock particle by dissolving it.
==> Frost action also takes place in the for-spaces of rocks and causes disintegration and splitting of rocks into fragments.
==> Chemical reactions are also taking place in rocks internally and causing rock-loosening.
==> Slow geological process of construction and destruction is going on the surface of earth for millions of years because earth is old enough and has been completely leveled by weathering and erosion. Factors affecting rock weathering.