Explain the role of family and school in controlling brain drain from the country

Answer Expert Verified When schools teach children the problems that confront the nation, the miseries of the millions of citizens and the issues that they face everyday, children will not only be inspired to seek solutions to the problems but will also be motivated to do their bit for their motherland.

Explanation:

The correct option is Oscar determines the mineral content of rock core samples at different depths in Earth’s crust

We know that Earth layers are divided into different distances from its core. They vary from depth to depth inside the earths core. The layers of earth are basically formed by the types of rocks inside it. The very internal shape of earth contains molten rocks and the very outer layer called the crust has hard rocks so we can say that the types of rocks is responsible for the formation of earth's layers.