Answer:
During high tide when the level of seawater rises, more sea water is brought into the estuary. This makes the water very salty and thus increases the percentage of dissolved salt in the estuary. Therefore, at high tide, the salinity of an estuary increases significantly.
Explanation:
 
        
             
        
        
        
Answer:
Explanation:
Because of the large presence of water in the Southern Hemisphere, the climate in the Earth's southern half is milder overall than the Northern Hemisphere. In general, water heats and cools more slowly than land so water near any land area usually has a moderating effect on the land's climate
 
        
             
        
        
        
Answer:plains,plateaus,mountain B,mountain R
Explanation:
 
        
             
        
        
        
The correct answer is:
C) NAFTA encourages trade between Mexico, U.S. and Canada.
Explanation:
The North American Free Trade Agreement or NAFTA was an agreement signed between Canada, the USA and Mexico on January 1, 1994 establishing a trade bloc between the three.
 
        
                    
             
        
        
        
The main continent would be South America. Llamas originated in North America, then migrated south to South America, and inhabited what is now Peru.