Exposure to environmental tobacco smoke causes approximately 45 to 46,000 non smokers to die of heat diseases annually. Smoking harms the cardiovascular system in many ways which include; damaging the lining of arteries, reduces HDL, good choresterol, Raises LML, bad cholesterol, increases blood pressure and heart rate, it also causes the platelets to stick together in the blood stream and speeds the development of fatty deposits in the arteries among other risk factors.
It's the epidermis, because it is the outermost layer of our skin, it creates a waterproof barrier and creates skin color pigmentation.
I would say that B) single events or several causes working together to produce extinction in a short period is referred to as mass extinction, but I am not 100% sure.
Answer:
A
Explanation:
A punnett square uses dominant and recessive genes to determine what traits the offspring will have.
Answer:
joules
Explanation:
As we know
Q is the Heat Energy
M is the mass of the substance releasing /absorbing heat
C is the specific heat capacity 
Joules per kilogram per degree
is the change in temperature
Substituting the given values, we get
joules
