Which of the following micro-organism causes diseases like polio and chicken pox?

• Bacteria
• Protozoa
• Algae
• Virus

Which instrument is used for measuring humidity of atmosphere?

• Barometer
• Anemometer
• Thermometer
• Hygrometer

When iron rusts, its weight __________

• decreases
• increases
• remains the same
• first increases and then decreases

What is commonly known as white plague?

• Typhoid
• Malaria
• Tuberculosis
• Plague

Which of the following is NOT an allotrope of carbon?

• Diamond
• Graphite
• C-60
• Methane

Which of the following vitamins are water soluble?

• Vitamin-A & Vitamin-B
• Vitamin-B & Vitamin-C
• Vitamin-C & Vitamin-D
• Vitamin-A & Vitamin-K

Hepatitis affects which organ of the human body?

• Liver
• Pancreas
• Spleen
• Small intestine

The most abundant metal in the Earth crust is:

• zinc
• copper
• aluminium
• iron

Which of the following is the uppermost layer of the atmosphere?

• Stratosphere
• Mesosphere
• Ionosphere
• Exosphere

Which metal is responsible for Itai-Itai disease?

• Cadmium
• Nickel
• Chromium
• Mercury