Which of the following wavelength does NOT belong to visible light? A.
690 nm

B.
900 nm

C.
500 nm

D.
390 nm

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments