Question
Which of the following are not correct?
Select the correct answer from the codes given below:
- Upper layer of the crust is composed of crystalline acidic igneous and metamorphic rocks.
- The lower layer of crust has basaltic or ultrabasic rocks.
- The mean radius of the earth is 6,400 m.
- The core temperature of the earth is approximately 2,000.
Select the correct answer from the codes given below:
Answer: Option A
Answer: (a)
Earth radius is the distance from Earth’s center to its surface, about 6,371 kilometers (3,959 mi).
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Answer: (a)
Earth radius is the distance from Earth’s center to its surface, about 6,371 kilometers (3,959 mi).
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