Sets
General Science Set 50
30 questions 1. In Hydra, a bud develops as an outgrowth due to:
2. Niels Bohr proposed his model of the atom in:
3. An aqueous solution of which of the following does not conduct electricity?
4. A person has a stroke volume of 80 mL and a heart rate of 75 beats per minute. The cardiac output is:
5. If the velocity of a vehicle becomes three times its original value, its kinetic energy becomes:
6. Tooth decay starts when the pH of the mouth falls below:
7. In cyanobacteria such as Nostoc and Anabaena, atmospheric nitrogen is fixed in specialised cells called:
8. Which of the following planets is mostly made of gas and ice?
9. The ancient Indian text that records observations on plant growth, soil and agricultural practices is:
10. Impurities such as soil and sand present in an ore are called:
11. One atmosphere is equal to:
12. The Scottish physician James Lind observed sailors recovering from scurvy during a voyage in the year:
13. With respect to the displacement plot, the acceleration plot in SHM has a phase difference of:
14. The test used to identify carbon dioxide gas is:
15. The non-membrane-bound organelle of animal cells that helps in cell division is:
16. A sonar signal returns from the sea bed after 2.4 s. If the speed of sound in seawater is 1500 m s⁻¹, the depth of the sea bed is:
17. Increasing the pressure on a gas causes its density to:
18. Mixed blood is pumped out by the single ventricle in:
19. Sound waves with frequency above 20 kHz are called:
20. Consider the following statements about camels:
(I) They excrete small amounts of urine.
(II) Their dung is dry.
(III) They sweat profusely.
Which of the above is/are correct?