The nitrogen in the air cannot be used by producers and consumers. It must be fixed or converted by bacteria in the ground into a useable form for plants called nitrates. Some plants called legumes (beans and clover) actually have bacteria in their roots.
Answer:Rarely use plastic
Explanation:
The first Olympic game was held in 776 BC
Because they are genetically diverse cells that are used in sexual reproduction
State the problem
Research
State the hypothesis
Test the hypothesis
Analyze the results
Conclusion
