Q. Study the following statements and select the correct answer from the codes given below
1. The average density of rocks in the lower crust of the earth 3.
2. there is a gradual decrease in the velocity of the seismic waves through the lower crust.
3. The mantle core boundary is marked by Moho-discontinuity.
4. The outer core of the Earth is in molten form.
1. The average density of rocks in the lower crust of the earth 3.
2. there is a gradual decrease in the velocity of the seismic waves through the lower crust.
3. The mantle core boundary is marked by Moho-discontinuity.
4. The outer core of the Earth is in molten form.
✅ Correct Answer: (D)
1 and 4
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