Electrostatic precipitator is used to control?
Environmental pollution can be controlled by?
Epoxy resins is used as:
Excess amount of absorbed water by plants is liberated out by?
Fixation of nitrogen means:
Flowerless plants are termed as ?
Excretion in Hemichordates takes place by
Essential oils contain
Endoscope is an instrument used to detect the ulcers in the stomach has a long narrow tube (with a small glowing bulb at one end) which is inserted in to the stomach through the mouth contains