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1. Anaerobic decomposition is carried out in absence of ___

A

Carbon Dioxide

B

Oxygen

C

Hydrogen

D

Methane

2. What is the source of formic acid?

A

Ant

B

Tomato

C

Ginger

D

Apple

3. At which place on earth the value of gravity is maximum?

A

Tropic of Capricorn

B

Equator

C

Poles

D

Tropic of Cancer

4. What is the value of absolute zero temperature in Kelvin scale?

A

- 273.15 K

B

0 K

C

- 100 K

D

- 459.69 K

5. Which among the following has the lowest calorific value?

A

Wood

B

Hydrogen

C

Kerosene

D

Petrol

6. Which of the following is known as amphibians of the plant kingdom?

A

Angiopserm

B

Pteridophyte

C

Gymnosperm

D

Bryophyte

7. Ammeter is used to measure _______ flow in the device.

A

Force

B

Voltage

C

Current

D

Resistance

8. The hormone released by the pineal gland that regulates the sleep-wake cycle is called _______.

A

Melatonin

B

Serotonin

C

Morphine

D

Oxytocin

9. Which of the following is NOT a communicable disease?

A

Epilepsy

B

Rabies

C

Pertussis

D

Shegellosis

10. The solid or liquid particles suspended in the air are called

A

Acid

B

Hydrocarbons

C

Aerosols

D

Water

11. Uptake of Nitrogen in the Neem tree is in the form of

A

Organic compounds prepared by bacteria from atmospheric nitrogen.

B

Nitrous oxide through gaseous exchange from stomata of the plant

C

Nitric oxide through gaseous exchange from stomata of the plant

D

Nitrous oxide through roots of the plant

12. Deficiency of Vitamin D causes

A

Rickets

B

Night Blindness

C

Scurvy

D

Beri-Beri

13. During the process of photosynthesis in a neem tree, the first step is

A

Absorption of light energy by chlorophyll

B

Reduction of carbon dioxide to Carbohydrates

C

splitting of water molecules in hydrogen and oxygen

D

Conversion of light energy to chemical energy

14. Which of the following organisms derives its nutrition directly from other organisms?

A

Leech

B

Aspergillus

C

Paramecium

D

None of these

15. Which isotope is used for the treatment of cancer

A

Radium

B

Cobalt

C

Iodine

D

Uranium

16. Firewood has low heat content per kg of its mass. Which one of the following technologies can be used to convert firewood to a better source of energy?

A

Converting it into fossil fuel

B

Burning it in limited supply of oxygen

C

Converting it into bio gas

D

Converting it into ash

17. Which one of the following is true for ozone?

A

Ozone is a deadly poison

B

Ozone is not harmful

C

Ozone is essential for all aerobic forms of life

D

Ozone is essential for the metabolic activities of plants

18. A particle moves on X-axis starting from x=1.0 If the particle moves 5.0 units in the positive direction and 3.0 units in the negative direction, then the displacement d is given by the expression

A

d=5.0+3.0

B

d=5.0-3.0

C

d=5.0+3.0-1.0

D

d=5.0-3.0-1.0

19. Carbon and energy requirements of the autotrophic organism are fulfilled b

A

Transpiration

B

Digestion

C

Respiration

D

Photosynthesis

20. Longitudinal waves with amplitude A=0.1 can be propagated through fluids and solids with volume 2.0 m because

A

Fluids and solids have bulk modulus

B

Fluids have shear modulus and solids have bulk modulus

C

They both possess shear modulus

D

Fluids have bulk modulus and solids have shear modulus