Answer:
2. The US uses far less renewable energy than most other countries.
Explanation:
US uses very less renewable entgy in comparison to other countries because of several reasons such as:
- overall cost of renewable energy is very high.
- limitations to geography.
- can cause pollution, such as biomass.
- fossil fuels are more reliable as do not depend on other environemntal fluctuations such as solar light.
Hence, the correct option is 2.
 
        
             
        
        
        
Answer: B)  Predator/prey
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Explanation:
The lynx is the predator that hunts and eats the snowshoe hare, which is the prey. 
The graph shows that when the hare population is large, so is the predator population because they rely on the hares as a source of food. However, the more predators there are, the less prey there will be. This causes the prey population to decrease. In turn, this decrease causes the predator population to decrease as well. If there's less food, then some of the lynx population will starve to death. 
At some point, the hare population will rebound and go back up due to less predators eating them. They have a better chance to survive. As the hare population goes up, so does the lynx population. They're both strongly linked together, and we have this cyclic pattern the graph indicates. You could say this is "the cycle of life" or "cycle of nature" so to speak. 
This is a very simplistic viewpoint because it does not account for other factors such as other predators and other prey, and it also doesn't take account of things like habitat loss for instance. Despite that, such predator-prey models are still useful to understand the connection between the two species.
 
        
                    
             
        
        
        
Answer:
Bed D is the oldest
Explanation:
Hope this helps also the bed that are on the lowest portion is always the oldest layer.
 
        
                    
             
        
        
        
Answer:
a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.
Explanation: