In accordance with the Law of Tolerance the organisms success is limited by ______as well as ______ ...: ответ на тест 1056172 - Экология

Match the anthropogenic impact on biosphere and its example in terms of intension of impact:
1. Intended  impact
2. Unintended impact
3. Spontaneous impact

Match the pollutant and its impact on human organism
1. benzapyrene
2. mercury compounds
3. sulfur vapor

Match sewage purification plant and sewage purification method

1. aerotank


2. mud trap

3. reactor-ozonator plant

Rural population  tend cattle and small ruminants  close to zinc-lead enterprise. In the grazing land there is high concentration of lead (Pb). In ground waters (mine wells) the average concentration of lead reaches 0,6 mg/l. The concentration of lead (Pb) content in meat is 2 mg/kg,  in milk it is 0,3 mg/l, in bread – 0,6 mg/kg, in potatoes – 1 mg/kg. Person’s daily requirement for products is as follows: drinking water – 2 l, meat – 0,1 kg, milk – 0,8 l, bread – 0,1 kg, potatoes – 0,3 kg. Admissible  daily lead (Pb) intake  recommended by World Health Organization equals 0,43 mg. Actual lead (Pb) daily intake coming with water and food is ______ mg. (Give your answer as a whole number.)

Ecological functions of forests are as follows …

Match the dates and the events
1. United Nations Conference on the Human Environment in Stockholm.
2. World Charter for Nature adopted by United Nations member nation-states.
3. United Nations Conference on Environment and Development in Rio de Janerio.