What is produced when plastic is made out of petroleum?
Options:
- (A) dangerous
- (B) bioaerosols
- (C) emissions
- (D) hydrocarbons
- (E) pollution
- (F) heat produced
- (G) Pesticides
- (H) heat energy
--
Let's think first: Plastics are made from petroleum and produce toxic waste. Pollution issues include toxic waste disposal. Plastics are made from petroleum and produce pollution.... So the answer is [(E)]

Plants cell walls are made of
Options:
- (A) fiber
- (B) keratin
- (C) alveoli
- (D) cations
- (E) matter
- (F) CO 2
- (G) porous
- (H) Cane.
--
Let's think first: Plants are multicellular eukaryotes with cell walls made of cellulose. Basically, fiber is cellulose . Plants cell walls are made of fiber.... So the answer is [(A)]

What might puppies and kitties have?
Options:
- (A) They have thick fur
- (B) leeches
- (C) Animal fur
- (D) fur and fat
- (E) sensory neurons
- (F) parasitic snakes
- (G) crickets
- (H) parasitic worms
--
Let's think first: Roundworms may be free-living or parasitic. Roundworms Nearly all puppies and kittens have roundworms. Puppies and kittens may have parasitic worms.... So the answer is [(H)]