Quote:
Originally Posted by actor
Everyday Science
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7. A 'clinical death' takes place when: a) there is no pulse b) there is no heart beat c)pupils are fixed and dilated and there is no reaction to light d) all of above
d) all of above[/QUOTE]
b) There is no heartbeat.
[/QUOTE]11. From ecological point of view human beings are taken as: a. decomposers b. consumers’ c. producers d. All of these
c. producers[/QUOTE]
b)Consumers
[/QUOTE]17. Plants can be made disease resistant by: a)heat Treatment b)hormone treatment c)colchicine treatment d)breeding with their wild relatives
b)hormone treatment[/QUOTE]
d)breeding with their wild relative
[/QUOTE]21. Which of the following is a semiconductor? a) Mercury b) magnesium c) silver d) none of these
c) silver[/QUOTE]
d) none of these
[/QUOTE]25. The non- communicable disease is called: a. Endemic b. Acute c. Chronic d. Innate
c. Chronic[/QUOTE]
d)Innate
[/QUOTE]27. Which is not a function of HCL in stomach: a. softening fibrous food elements b. promoting formation of pepsin c. killing bacteria ingested with food and drink d. breakdown proteins into peptones
promoting formation of pepsin[/QUOTE]
a. softening fibrous food
[/QUOTE]32. If carbon dioxide is passed through lime water for a long time , the cloudy white colour (initially formed ) disappears because of the formation of : a. calcium bicarbonate
b. calcium hydroxide c. calcium carbonate d. calcium sulphate b. calcium hydroxide[/QUOTE]
a. calcium bicarbonate
[/QUOTE]33. Permanent hardness of water is due to the presence of a. calcium bicarbonate b. magnesium bicarbonate c. calcium sulphate d. sodium bicarbonate
?[/QUOTE]
c. calcium sulphate
[/QUOTE]34. Articles made of copper and bronze slowly tarnish in air and turn green , the green colour is due to the formation of : a. copper oxide b. copper sulphide c. copper oxalate d. all of these
?[/QUOTE]
a. copper oxide
[/QUOTE]35. Bleaching powder losses its power on keeping for a long time because a. it changes into calcium hypochlorite b. it changes into calcium chloride and calcium hydroxide c. it absorbs moisture d. it changes into calcium chloride and calcium chlorate
d. it changes into calcium chloride and calcium chlorate[/QUOTE]
c. it absorbs moisture
[/QUOTE]36. When the quantity of charge on each of the two bodies is doubled, the force between them becomes a. one fourth b. one half c. twice d. four times
a. one fourth[/QUOTE]
d. four times
[/QUOTE]42. An igneous rock contains a radioactive isotope that has a half life of 10 million years. Careful analysis shows that only one quarter of the original concentration of the parent isotope is left. How old is this igneous rock? a) 10 Million years b) 20 Million years c) 30 Million years d) 40 Million years
?[/QUOTE]
b) 20 Million years
[/QUOTE]43. The discipline which deals with the understanding and treatment of mental health is called: a) applied psychology b)clinical psychology c) psychoanalysis d) psychiatry
a) applied psychology[/QUOTE]
b)clinical psychology