When hfc-134a become combustible in a mobile air conditioning system.?

In an oxygen enriched environment.

Explanation:

The amalgamation of HFC-134a with a high concentration of air at elevated pressure can turn combustible in the existence of an ignition source, that is, an oxygen-enriched environment. Thus, at high-pressure condition in the presence of oxygen in a mobile air conditioning system results in combustible HFC-134a.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)