Thats false, plants and animals need a lot of sun and WATER to survive so a tropical climate is better
        
             
        
        
        
The correct answer is that the shells of clams and other mollusks dissolve when the pH becomes more acidic.
This is because the shells of clams and other mollusks are made of calcium carbonate that is dissolved in acidic conditions. The pH  needs to be low to dissolve calcium carbonate into it. It takes few days to dissolve the shell completely. 
 
        
                    
             
        
        
        
The correct answer is:
CO2 diffuses passively out of the cell.
O2 in respiration is converted to water. O2 diffuses in to the cell. 
Explanation:
Cellular respiration is the chemical reaction in which glucose and oxygen are converted into water, carbon dioxide, and energy (ATP). In this reaction, glucose and oxygen are reactants, while water, carbon dioxide, and energy (ATP) are products. Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to change biochemical energy from nutrients into adenosine triphosphate and then discharge waste products.
 
        
                    
             
        
        
        
Answer:
D.  more, faster
Explanation:
The more surface area exposed the faster the weathering occurs.