Question:
Use evidence from the fact that a doorbell converts electrical energy into sound to answer the following question. "The doorbell was pushed, but sound failed to emit. What might cause this?"

Answer:
Batteries dead

Question:
Use evidence from the fact that In the cellular respiration process carbon dioxide is a waste product to answer the following question. "We might use our carbon dioxide waste to"

Answer:
feed roses

Question:
Use evidence from the fact that harming an animal species causes that animal 's population to decrease to answer the following question. "The rhino population is smaller than before because"

Answer:
people use parts for health remedies