Тест по экологии (на английском языке)

Ответы к 120 вопросам финальному тесту по экологии 1 курса, 1 семестра. Для студентов учащихся на английском языке. IT university, 2011, 1 course. Примеры:
The major component of photochemical smog is:
tropospheric ozone
To reduce greenhouse effect it should be done:
to use alternative sources of energy
Distribution of gas concentrations in the atmosphere in descending order is:
nitrogen - oxygen - argon - carbon dioxide
Ecological footprint (of a country or each person) is:
the average amount of productive land and ocean needed to supply with food, energy, water, housing, transportation, and waste disposal
The global human population grew very slowly until:
the industrial revolution и т.д и т.п.