Answer:
Adverse impact occur on food web.
Explanation:
There is adverse impact of the change in resources on food web of an ecosystem because food web depends on resources of the environment for their growth and survival. If the producers produce less amount of vegetation due to unfavourable environmental conditions, it greatly decrease the population of herbivores because food is not available in sufficient amount that decreases its population as well as population of secondary and tertiary consumers.
Answer:
Not 100% sure but I think its special purpose
Because the USA and other countries fear nuclear threats and are afraid they will bomb their country. This would result in war and use of more nuclear weapons which would kill many.