Answer:
the inner core is solid because S-waves stop at the inner core. The strong magnetic field is caused by convection in the liquid outer core.
Explanation:
Answer:
Sustainable development is very necessary for the present world.
Explanation:
There is a great need of sustainable development because in sustainable development, we fulfill the needs of present population and also take care the future generation by using the resources in a proper and efficient way. The example of sustainable development is the recycling of already used substances which reduces the use of resources and also the cost of the product.
True. Historic texts can be trusted to help in the location of archaeological sites.
Archaeological sites
An archaeological site is a location that has been or may be explored using the discipline of archaeology and preserves traces of previous activity. It forms a part of the archaeological record. Sites can include those with few or no apparent remnants above ground as well as ones with standing buildings and other structures.
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