Why is charcoal black?

question 4 options:

a. charcoal reflects black-colored light.

b. charcoal has a black-colored pigment.

c. charcoal absorbs all wavelengths of light that fall on it.

d. charcoal reflects all wavelengths of light that fall on it.

Which of the following are guidelines to follow for obtaining accurate observations

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.