Answer:
I think farm expenditures
 
        
             
        
        
        
Answer:
Yes
Explanation:
Plants extract CO2 from the air and also use sunlight and water as the reactants of the process photosynthesis. Photosynthesis then produces Glucose and Oxygen. Oxygen is rid of the plant.
 
        
             
        
        
        
<span>Here are the choices:
a.
using solar power
b.
recycling glass
c.
using nuclear power
d.
using biofuels
The answer is b. Recycling glass. It is not included in resource conservation since it is not coming from the natural resources. </span>
        
                    
             
        
        
        
Answer:
Hormones are controlled by a
(negative)
feedback system between the glands that produce this hormone and the  concentration of blood calcium ions. If the level of ions is
(low)
,hormone secretion is increased. This causes  resorption by  cells called
which releases both calcium and phosphate ions into the blood stream.
Explanation: 
Negative Feedback a the process in your body that helps to maintain Homeostasis. If some variable changes a value in your body, like your ion levels,  your glands produce a hormone that causes resorption by  cells. This releases both calcium and phosphate ions into the blood stream and therefore your ion levels go back to normal.
Hope this helps!