SCIENTIFIC QUIZ

The hardest substance found in human body?

• Bone

• Tooth enamel

• Nail

• Cartilage

The SI unit of current is?

• Volt

• Ampere

• Ohm

• Watt

Gas used in photosynthesis?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

Which planet is known as the Red Planet?

• Venus

• Mars

• Mercury

• Jupiter

Blood groups were discovered by?

• Robert Koch

• Karl Landsteiner

• Pasteur

• Jenner

Electric bulb filament is made of?

• Copper

• Tungsten

• Aluminium

• Iron

Ozone protects us from?

• Radio waves

• UV rays

• Visible light

• Infrared

The gas used for respiration by aquatic animals?

• CO2

• O2 dissolved in water

• Nitrogen

• Helium

Which vitamin is produced in our body by sunlight?

• A

• D

• E

• C

The green pigment in plants?

• Chlorophyll

• Carotene

• Anthocyanin

• Xanthophyll