If you are conducting a study on the health of people who have been exposed vs not exposed, the method you should use to obtain data would be an observational study because it involves the pre-existing condition of the subjects.
Table salt when in water dissociates into sodium and chloride ions. Water can dissolve salt<span> because the positive part of </span>water<span> molecules attracts the negative chloride ions and the negative part of </span>water<span> molecules attracts the positive sodium ions. Hope this helps.</span>
It is a true fact that currents cause warmer and cooler temperatures in the areas where they are located.
Hope this helps :)
Answer:
the energy that occurs is chemical energy
Answer:
A community includes both Biotic and Abiotic components of the environment.
Explanation:
