What is the best description of Cosmic Microwave Background Radiation?

Residual energy leftover form the origin of the universe.

Energy from the Sun measured in microwaves.

Evidence that galaxies are rapidly moving apart.

The chemical composition of Hydrogen and Helium.

PLEASEE HELPPP

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

An enzymatic hydrolysis of fructose-1-p, fructose-1-p(aq) + h2o(l) - fructose (aq) + pi (aq) was allowed to proceed to equilibrium at 25°c. the original concentration of fructose-1-p was 0.2 m, but when the system had reached equilibrium, the concentration of fructose-1-p was only 6.52 x 10^-5 m. calculate the equilibrium constant for this reaction and the free energy of hydrolysis of fructose-1-p.