Answer:
only helium makes balloons go up so the answer is helium
Explanation:
Answer:
Negative Feedback
Explanation:
Negative feedback is a stimulus that cause the system to move in the opposite direction of what has happening. For example if your are cold, you will shiver in order to create heat that will cause your body temperature to increase. But if you are hot you will sweat which will cause your body temperature to decrease.
Answer:
both options 4 and 3 is the answer..
<span>Controlling your blood pressure. It is the anti-diuretic hormone that works in your kidneys and blood vessels. It keeps the kidney from releasing too much water into the urine. ADH is made in the hypothalamus of your brain and then stored in the back of the pituitary gland.</span>
Answer:
us humans need a balanced ecosystem because its what keeps us alive. when having a balanced ecosystem we have cleaned water, purified air, maintained soil, regulates our climate, recycles nutrients, and provides us with food.
