These. it is demonstrating what the speaker is taking about
Answer:
It means "full of conflict"
Explanation:
The context of the sentence shows that their 'good friendship' stands in contrast to the 'tempestous' nature of the relationship.
Hence, the contextual meaning of tempestuous here will be It means "full of conflict".
Answer: Environmental degradation
Explanation: Environmental degradation is the deterioration of the environment through depletion of resources such as quality of air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
