In an ecosystem, bacteria are the
B. Primary consumers.
C. Secondary consumers.
Deforestation generally decreases;
B. Global warming.
C. Soil erosion.
Which one of the following are non-renewable resources?
C. Fossil fuels.
D. All of these.
Biosphere reserve project was initiated in India during;
Sound becomes hazardous noise pollution at decibels-
A. Above 50.
B. Above 80.
C. Above 100.
D. Above 130.