Which energy resource does not give off atmospheric pollutants?

a. Natural gas
C. Nuclear energy
b. Coal
d. Burning wood

What is the difference between bacterial infections and viral infections?

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe