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Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.?
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Which of the following statements is correct? (a) The temperature decr...
Statement (a): The temperature decreases with increasing depth towards the Earth's center.
This statement is not correct. The temperature inside the Earth actually increases with increasing depth towards the Earth's center. This is due to the heat generated by the radioactive decay of elements in the Earth's core. The temperature gradient inside the Earth is known as the geothermal gradient, and it varies depending on various factors such as the composition and thermal conductivity of the rocks.
Statement (b): The pressure in the Earth's interior remains constant at all depths.
This statement is not correct. The pressure inside the Earth increases with increasing depth. The weight of the overlying rocks and the gravitational forces compress the rocks and cause an increase in pressure. This increase in pressure is known as lithostatic pressure and it plays a crucial role in various geological processes.
Statement (c): The density of the Earth's interior decreases with increasing depth.
This statement is not correct. The density of the Earth's interior generally increases with increasing depth. The Earth is composed of different layers with varying densities. The inner core, for example, is the densest part of the Earth, while the outermost layer, the crust, is less dense. The density increases because the materials at greater depths are typically composed of heavier elements and have undergone compression due to the weight of the overlying rocks.
Statement (d): The increase in pressure at greater depths increases the melting point of rocks.
This statement is correct. As the pressure increases with depth, the melting point of rocks also increases. This is known as the pressure-temperature relationship. When rocks are subjected to high pressures, it requires higher temperatures to reach the melting point. This is why rocks in the Earth's mantle, which experiences high pressures, have higher melting points compared to rocks at the surface. The increase in pressure also affects the behavior of minerals and can lead to changes in their crystal structure and properties.
In conclusion, the correct statement among the given options is (d) The increase in pressure at greater depths increases the melting point of rocks.
This statement is not correct. The temperature inside the Earth actually increases with increasing depth towards the Earth's center. This is due to the heat generated by the radioactive decay of elements in the Earth's core. The temperature gradient inside the Earth is known as the geothermal gradient, and it varies depending on various factors such as the composition and thermal conductivity of the rocks.
Statement (b): The pressure in the Earth's interior remains constant at all depths.
This statement is not correct. The pressure inside the Earth increases with increasing depth. The weight of the overlying rocks and the gravitational forces compress the rocks and cause an increase in pressure. This increase in pressure is known as lithostatic pressure and it plays a crucial role in various geological processes.
Statement (c): The density of the Earth's interior decreases with increasing depth.
This statement is not correct. The density of the Earth's interior generally increases with increasing depth. The Earth is composed of different layers with varying densities. The inner core, for example, is the densest part of the Earth, while the outermost layer, the crust, is less dense. The density increases because the materials at greater depths are typically composed of heavier elements and have undergone compression due to the weight of the overlying rocks.
Statement (d): The increase in pressure at greater depths increases the melting point of rocks.
This statement is correct. As the pressure increases with depth, the melting point of rocks also increases. This is known as the pressure-temperature relationship. When rocks are subjected to high pressures, it requires higher temperatures to reach the melting point. This is why rocks in the Earth's mantle, which experiences high pressures, have higher melting points compared to rocks at the surface. The increase in pressure also affects the behavior of minerals and can lead to changes in their crystal structure and properties.
In conclusion, the correct statement among the given options is (d) The increase in pressure at greater depths increases the melting point of rocks.
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Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.?
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Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.?.
Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.?.
Solutions for Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? in English & in Hindi are available as part of our courses for UPSC.
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Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.?, a detailed solution for Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? has been provided alongside types of Which of the following statements is correct? (a) The temperature decreases with increasing depth towards the Earth's center. (b) The pressure in the Earth's interior remains constant at all depths. (c) The density of the Earth's interior decreases with increasing depth. (d) The increase in pressure at greater depths increases the melting point of rocks. Why not option a? Answer is D.? theory, EduRev gives you an
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