Q.41)-Stone cancer' occurs due to
- Acid rain
- Global warming
- Radioactivity
- Bacterial action
Q.42)-Which of the following is biodegradable
- paper
- DDT
- Aluminium
- Plastic
Q.43)-Cadmium pollution is associated with
- Minamata Disease
- Black foot disease
- Dysexia
- Itai-Itai
Q.44)-In a food chain the solar energy utilised by plants is only
- 10%
- 1%
- 0.10%
- 0.00%
Q.45)-IUCN categorised major threatened species Under
- 7 classes
- 5 classes
- 6 classes
- 4 classes
Q.46)-The optimum dissolved oxygen level (in mg/L) required for survival of aquatic organism is
- 6-Apr
- 4-Feb
- 10-Aug
- 16-Dec
Q.47)-Which of the following represents a food chain involving a producer, a vegetarian and a non-vegetarian
- Grass-Insert-Elephant
- Plant-Rabbit--Tiger
- Fish-Insert-Whale
- Tiger-Rabbits-owl
Q.48)-According to darwin's theory of evolution, long Necks in Giraffes
- Arose because of constant attemp to reach leaves on tall trees, generaion after genetation
- Do not give them any special advantage and is just an accident
- Give them advantage and is just an accident
- Is a reslut of the special weather prevalent in aftrican Savannah
Q.49)-Which of the following branches deals with the interraction of same species of living environment
- Autecology
- Synecology
- Ecology
- Palaeonthology
Q.50)-Which of the following snakes killed for its beautiful skin has been declared an endangered species
- Python
- King Cobra
- Russell's Viper
- Krait
