Q1.Which of the following produces the most solid waste?
(a) Agriculture
(b) Nuclear Power Plants
(c) Manufacturing
(d) Packaging Industry
Q2.Potassium Permanganate is used for purifying drinking water, because_________
(a) It is a reducing agent
(b) It is an oxidising agent
(c) It is a sterilising agent
(d) It dissolves the impurities of water
Q3.Spraying of DDT on crops causes pollution of __________
(a) Air & Soil
(b) Crops & Air
(c) Soil & Water
(d) Air & Water
Q4.Which cells in pancreas produce Insulin ?
(a) Thymus
(b) Estrogen
(c) Corpus epididymis
(d) Islets of Langerhans
Q5.When we see an object, the image formed on the retina is ________
(a) Real and inverted
(b) Real and erect
(c) Virtual and erect
(d) Virtual and inverted
Q6.Kinetic energy depends on—
(a) the velocity or speed of the moving body.
(b) the mass of the moving body
(c) the pressure of the moving body
(d) both mass and velocity of the moving body
Q7.In which form is the supplied heat energy stored during change in temperature of substance?
(a) Heat energy
(b) Kinetic energy
(c) Potential energy
(d) Both kinetic and potential energy
Q8.Atoms of same element having different mass numbers are called__________
(a) Isobars
(b) Isotopes
(c) Isotones
(d) Isomers
Q9. Which of the following elements is non-radioactive?
(a) Uranium
(b) Thorium
(c) Plutonium
(d) Zirconium
Q10. Nitrification means–
(a) Liquifaction of nitrogen
(b) Convert the atmospheric nitrogen to effective nitrogen compound
(c) Production of nitrogen from air
(d) Conversion of nitrogen to nitric acid.
Q11. The pancreas secretes—
(a) Insulin
(b) Bile juice
(c) Peptic juice
(d) None of these
Q12. ORS is given in—
(a) Measles
(b) Tetanus
(c) Diarrhoea
(d) Typhoid
Q13. An Almirah is a solid because its—
(a) density is very high
(b) hard and rigid
(c) shape doesn’t change when pressed
(d) All of these
Q14. What are the characteristics of the particles of matter?
(1) Particles of matter are in continuous motion
(2) Particles of matters do not have spaces between them
(3) Particles of matter attract each other
(4) Particles of matter are very large in size.
(a) (1), (2) and (3) are correct
(b) (2) and (3) are correct
(c) (1) and (3) are correct
(d) All of these
Q15. Which of the following is cold blooded?
(a) Fish
(b) Frog
(c) Lizard
(d) All of these
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