If greenhouse gases in the atmosphere act like a blanket around the Earth, how is this "blanket" being changed by human activities? It is getting thinner and keeping the Earth cooler. It is getting thicker and keeping the Earth cooler. It is getting thicker and keeping the Earth warmer. It is getting thinner and keeping the Earth warmer.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next