If you know, answer this. If you don’t know this, don’t second guess

Which of the following best describes the formation of plasma?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

The biosphere of the earth is made up of what compound? organic or inorganic?