Which of the following was the leading cause of global fossil carbon emissions in 2004? a. petroleum
b. coal
c. natural gas
d. cement production

Nerve cells are specialized to respond to stimulitrue or false?

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f