Answer:
Groundwater moves very slowly through the aquifers at a rate of only inches per day. Some contaminants that reach the groundwater break down slowly or not at all, and move slowly with the water. Therefore, groundwater may contain these contaminants for many years.
Explanation:
If two parents are going to have one child, the percent probability of having a girl is 50% and the percent probability of having a boy is 50%.
So the correct answer is B. 50% ; 50%
Hope this helps,
Davinia.
Answer:
The correct answer is D. to produce secretions that regulate the body
Explanation:
The endocrine system, through the glands (example: pituitary, thyroid, adrenal, among others), secretes chemical substances (hormones) that are released into the bloodstream, which maintain the chemical balance of the body, growth control, state of mood, nutrient metabolism, among other functions.