Which complex problem is a challenge for the current global economy?

A. Loss of jobs in Great Britain

B. Increased greenhouse gas emissions.

C. Piracy in U. S. waters

D. Drought in southern Australia

really dont know just need some points

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.

(nitrogen fixation) will be your answer sorry if im wrong