The substances they need are carbon dioxide, water, and chlorophyll, and the substances produced by photosynthesis is 1 glucose molecule and 6 oxygen molecules
        
                    
             
        
        
        
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
 
        
             
        
        
        
A long, wet season results in additional earthworms in a robin habitat.
Explanation:
A long, wet season resulting in additional earthworms in a robin habitat will not lead to competition in an ecosystem or area. 
Competition between organisms is the struggle for limited resources in the environment that are beneficial to all lives. 
- Competition is usually driven by shortages and lack of resources to make life better in the ecosystem. 
- When resources becomes depleted and are in limited amount organisms will begin to strive among on another to develop advantages that would make them top out. 
- A long, wet season resulting in the introduction of additional earthworms in a robin habitat is not an example of competition. 
- The earthworms available is a limiting factor and this has been circumvented by the introduction of more earthworms during the prolonged wet season. 
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Answer:
<h2>SPACE</h2>
Explanation:
Carrying capacity, or the maximum number of individuals that an environment can sustain over time without destroying or degrading the environment, is determined by a few key factors: food availability, water, and space