This could possibly be because the more advanced countries are more advanced in technology and have vehicles, and those vehicles produce CO2. And because of the greenhouse gas effect the more CO2 that is produced the warmer the earth will be.
If I believe I'm correct it's B
Hope this helped ☺️
Not enough oxygen
rainforests will turn into desserts like the Sahara dessert which use to be a tropical place.
First, there were two independent clinical psychologists who were present or on call 24 hours a day. They had the power to intervene and to remove anyone from the study if they thought they were in distress.
Second, we had paramedics and security guards on hand and ready to intervene at a moment’s notice if anything untoward happened in the study.
Third, the study was constantly monitored by members of a five-person independent ethics panel. This was chaired by a Member of Parliament and also included members of the Holocaust Educational Trust, the Howard League for Penal Reform, the BBC’s Independent Editorial Policy Unit and a senior academic psychologist. This committee had the power to change the way the study as a whole was run and to terminate it if they had ethical concerns.
http://www.bbcprisonstudy.org/bbc-prison-study.php?p=27
Answer: B.) (City A is on a coast while city B is in the middle of a continent.)
Explanation:
