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- Question 1 of 5
1. Question
1 pointsThe water pollution in river is measured by the dissolved amount of
Correct• Water pollution in river or any water body is measured by amount of dissolved oxygen. For example, Biochemical Oxygen Demand) BOD.
Incorrect• Water pollution in river or any water body is measured by amount of dissolved oxygen. For example, Biochemical Oxygen Demand) BOD.
- Question 2 of 5
2. Question
1 pointsWhich one of the following fuels caused minimum environment pollution?
Correct• Except hydrogen- Diesel, coal and kerosene are either naturally occurring fossil fuels or derived from them. These products have high percentage of carbon which on combustion lead to discharge of oxides of carbon in air which leads to heavy environment pollution.
Incorrect• Except hydrogen- Diesel, coal and kerosene are either naturally occurring fossil fuels or derived from them. These products have high percentage of carbon which on combustion lead to discharge of oxides of carbon in air which leads to heavy environment pollution.
- Question 3 of 5
3. Question
1 pointsWhich one of the following is a modified stem?
Correct• Potato tuber bears buds in small pits known as eyes. Buds develops to branches. Some of the branches become green, erect and leafy stem that grow horizontally underground.
Incorrect• Potato tuber bears buds in small pits known as eyes. Buds develops to branches. Some of the branches become green, erect and leafy stem that grow horizontally underground.
- Question 4 of 5
4. Question
1 pointsSoft drinks such as colas contain significant quantities of
Correct• Colas contain caffeine, carbonated water; glucose-fructose etc.
Incorrect• Colas contain caffeine, carbonated water; glucose-fructose etc.
- Question 5 of 5
5. Question
1 pointsConsider the following animals:
1) Sea cow
2) Sea horse
3) Sea lion
Which of the above is/are mammal/mammals?Correct• Sea cow and sea lion are mammals
Incorrect• Sea cow and sea lion are mammals