Which of the following energy sources does not require waste disposal? a. geothermal b. biomass c. nuclear d. coal

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Which best describes a rhinovirus? o a. a virus that causes a common cold o b. a protective shell around a virus o c. a tube the comes off a virus o d. a piece of dna transferred by a virus