Which planet is called the “red planet”?
An example of rhizome is_________?
A. Carrot B. Tomato C. Ginger D. Garlic
Which metal is pure conductor of electricity?
A. Copper B. Gold C. Silver D. lead
The process of converting wet waste to manure is___________?
A. Metabolism B. Conservation C. Incineration D. Composting
A colloidal system in which a liquid is dispersed into a liquid is called_________?
A. Percipitate B. Gel C. Emulsion D. Sol
Which of the following organisms releases molecular oxygen into water?
A. E.coli B. Phytoplankton C. Amoeba D. Salmonella
Which of the following pollutants in water causes “Minamata disease?
A. Methyl Mercury B. Lead C. Salmonella D. Perchlorate
lightest metal is__________?
A. Lithium B. Sodium C. Magnesium D. Aluminium
A crescograph is a device for measuring the growth in __________?
A. Micro Organism B. Plants C. Human D. Pollution
Which of the following is used in water purification?
A. Reverse Osmosis B. Osmosis C. Cytolysis D. Turgor Pressure