When a concentrated solution of an electrolyte is diluted?A.Its specific conductance increasesB.Its equivalent conductance decreases C.Its specific conductance decreases and equivalent conductance increasesD.Both specific and equivalent conductance increase

Which of the following is a micronutrient?

• A) Mg
• B) Zn/Cu
• C) Ca
• D) P

Which one of the following is non-biodegradable?

• a. DDT
• b. Vegetable peel
• c. Cardboard
• d. Bark of trees.

With the help of labelled diagrams explain the human male reproductive system.

Which of the following actions are reflex actions?

• I. Movement of the diaphragm during respiration
• II. Coughing
• III. Yawning
• IV. Sneezing
• V. Removal of hand on being touched by hot object

A. II and V only

B. III, IV and V only

C. IV and V only

D. I, II, III, IV and V

Which day is observed as the World environment day?

• A. 21 May
• B. 5 June
• C. 25 September
• D. 13 December