1. A is a group of ecosystems with similar climates and organisms.
A. grassland
B. cones
C. biome
D. deserts
• E. climate

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?

What effect might melting sea ice have for people who live in coastal areas?

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?