Question

5. Some organisms live together and share shelther and nutrients this is called
(a) Heterotrophs (b) Symbiosis (c) Predators (d) Autotrophs
6.
gas is released by the plants in the process of photosynthesis
(a) Nitrogen
(b) Hydrogen (c) Oxygen
Carbondioxide
7. The breakdown of complex components of food into simpler substances is called
(a) Nutrition
(b) Respiration () Digestion (d) None of the above
8. The largest gland in human body is
(a) Salivary gland
(b) Liver
(c) Stomach
(d) Large intestine
9. Length of small instestine is
(a) 1.5 metre (6)21 metre
(c) 12 metre
(d) 7.5 metre
10. Diarrhea is caused due to
(a) Poisoning
(6) Infection
(C) Indigestion (d) All of the above
11. Single cell organism among the folliwing is
(a) Yeast (b) Human being
(c) Amoeba (d) Cow
12. Which of the following Fibers are obtained from the fleece of animals?
(a) Nylon (b) Wool (c) Cotton (d) Jute
13. Which of the following is not a natural fabric ?
(a) Silk(b) Cotton (c) Wool
(d) Nylon
14. Name the device used for measuring temperature
(a) Thermometer
(b) Ammeter
(c) Tube (d) Anemometer
15. The unit of measurement of temperature is
(a) Second
(6) Nitrogen
(c) Celsius (d) Meter
16. The liquid metal used in a thermometer is
(a) Silver
(b) Gold
(c) Copper (d) Mercury
17. The process which heat allow to pass through them easily is called
(a) Convention (b) Conductors (c) Insulators (d) Radiation
18. The cool air moves from the land towards the sea is called
(a) Sea breeze (b) Sand breeze (c) Ice breeze (d) Land breeze
19. Acids are
(a) Sour in taste (6) Sweet in taste (c) Bitter in taste (d) Salty in taste
20. The substances that are used to used to test whether a substance is acid or basic is called
(a) Base (b) Acid (c) Salt (d) Indicator
21. Bases are
(a) Sour in taste (b) Bitter in taste (c) Salty in taste(d) Sweet in taste
22. The sting of an ant contains
(a) Sulphuric acid (b) Hydrochloric acid (c) Formic acid (d) Lactic acid
23. The rotting dead matter is the soil is called
(a) Humus (b) Gravel (c) Sand
(d) Clay
24. The types of sold suitable for growing masoor dal is
(a) Clayed soil (6) Loamy soil (c) Sandy soil (d) All of the above
25. Which substances pollute the soil
(a) Paper (b) Dead leaves (c) Polythene (d) None of the above
26. Breaking down of rocks by the action of wind and climate is called​

Answer 1

Explanation:

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