Can someone help me answer all of the questions really need help fine understand!!

What is the approximate chemical composition of the solar nebula?

How will globalization most likely affect language around the world? no new languages will be created. nations will adopt a universal language. more languages will become extinct. english will become less prevalent. languages will grow more isolated and distinct.

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."