Cuál es el cruce para un niño donde su padre tiene el pelo rizo RR y su madre pelo lacio rr

In an oxidation-reduction reaction, oxidation is what happens when a reactant

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.