The answer is C. changes in the fossil record.
Explanation:
Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. All magma develops underground, in the lower crust or upper mantle, because of the intense heat there.
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Answer:
B. Climatology
Explanation:
Earth science studied the patterns of weather over a long period of time is called climatology. Weather is shorter phenomenon and day to day activities whereas climate is the longer and average climatic conditions over a period of 30 years. Climatology deals with the study about the temperature, precipitation, humidity, and pressure in the specific area in the world. Tectonics is the branch of the geomorphology which deals about the inner and outer surface of the earth.
1. Any elevated area, such as mountain or an upland, separated two drainage basin such an elevation is known as a water divide—for example, Indus and the Ganga river. The high mountain or plateaus region where the water of the river flows in two opposite direction.
2. Ganga basin
3. The "origin of the Indus" and "Ganges river" is at "Himalayan Mountains".
4. The Ganga has two main headstreams are Bhagirathi and Alaknanda. They both meet to form the Ganga at Devprayag.
5. In Tibet, the river carries a smaller volume of water and less silt, as it is a cold and dry area. Hence, the river carries a large volume of water and a considerable amount of silt.
6. River Narmada and Tapi are the two Peninsular rivers which flow through trough.
7. Rivers and lakes are of a great value to human beings. They help to develop hydel power, provide water for irrigation, drinking, industries and they help to develop fisheries. They will enhance natural beauty and help in the development of tourism and provide recreation.
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