Free points+brainliest if answered correctly (obviously only one person will get brainliest, USE DETAILS TO EXPLAIN if you can lol) What does the formula "CH4" represent?

A. 4 molecules of carbon and hydrogen

B. 1 molecule of carbon and 4 molecules of hydrogen

C. 4 atoms of carbon and hydrogen

D. 1 atom of carbon and 4 atoms of hydrogen

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?