social 3.hydroshere short question 9th class
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Answer:
Give me que.. i will answer
Explanation:
What is fragmentation?
Answer:
Telanagana State Board Class 9 Social Studies Chapter 3 Hydrosphere Solution:
1.) Find the odd one out and give an explanation for your choice.
(i) a) evaporation b) condensation
c) salination d) precipitation
(ii) a) tectonics b) centrifugal force
c) solar energy d) precipitation
Answer: i) Salination is odd one out because evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature. and or pressure. Evaporation is a fundamental part of the water cycle and occurs constantly in water, as opposed to condensation.
ii) Tectonics is odd one out this is because centrifugal force, solar energy and precipitation are all related in the same process.
2.) Correct the false statements.
a) Ocean trenches can be located near the continents – True
b) Relief features of the oceans are like plains – True
c) Most salt in the seas is washed into it from land over centuries – True
d) Temperature of ocean water remains the same across the globe – False
Its not same across the globe.
3.) Do you think that the description of the blue planet is accurate? Describe any one way in which your activity impacts its oceans.
Answer: The description of the blue planet is correct for the earth. It is said to be a blue planet because most of the surface is covered with water and therefore takes on a blue colour. 71% area of the earth’s surface is covered with water. Earth is the fifth largest planet in the solar system and the third in relation to the sun’s distance. Earth is the only planet that sustains life at human cost. The ocean is the main body of water that makes planet Earth blue.
Many human activities have a negative effect on oceans, aquatic rocks and ice glaciers. One of those activities that have the greatest impact on the ocean is global warming. Global warming is increasing by increasing human activity. It is caused by the climatic changes occurring on the earth. The average temperature of the earth is increased by global warming. The greenhouse effect is the absorption and emission of infrared radiation and CFCs from gases emitted by humans on the planet. The atmosphere is polluted and these gases are trapped in the ozone layer which will increase the temperature of the Earth by depleting the ozone layer. Ozone layer is the layer that protects the earth from the harmful rays of the sun. As the earth’s temperature rises, the ice glaciers in the Arctic region and the Antarctic region begin to melt and raise the sea level, which is harmful to the land. In this way, human activity has a detrimental effect on the oceans and the land