All that
( chemistry)
which of the following are characteristics of heterogeneous mixtures?
- distinguishable components
- evenly distributed components
- particles too small to be seen with a microscope
- components in varying proportions
- particles that may settle

As you move from right to left on the periodic table the atomic radius fill in the blank

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?