Which is NOT one of the main threat categories used for threatened species?
Endangered
Vulnerable
Rare
Imperiled
Which one of the following is an example of non-renewable resources?
Wind
Water
Vegetation
Coal and minerals
The conference on 'The human environment' held from 5 to 16 June 1972 was held in :
Stockholm, Sweden
Tbilisi, Soviet Union
Rio de Janeiro, Brazil
Kyoto, Japan
What was the stump jump plough’s innovation?
Improving wheat yields
Revitalising the industry
Fertilizing the soil
Genetic modification
The year declared by UN as International Year of Forests.
2011
2010
2009
2008
