MCQs

Q171: Which disease is caused by deficiency of Iron?

• A) Berberi
• B) Anaemia
• C) Rickets

Q172: Which is the farthest planet in our solar system?

• A) Uranus
• B) Mercury
• C) Neptune

Q173: If a machine performs 20 J of work in 10 sec. then it power is ______?

• A) 200 watt
• B) 20 watt
• C) 2 watt

Q174: Light travels in a ______?

• A) Curved Path
• B) Zigzag Pattern
• C) Straight Line

Q175: Air is the example of a/an ______?

• A) Element
• B) Solution
• C) Mixture

Q176: The most common element found on Earth is _____?

• A) Hydrogen
• B) Oxygen
• C) Nitrogen

Q177: Ozone Layer restricts which one of the following?

• A) Infrared Rays
• B) Ultraviolet Rays
• C) X-Rays

Q178: The unit of amount of substance in SI system is _____?

• A) Liter (L)
• B) Mole (mol)
• C) Gram (g)

Q179: Omnivores that eat only _____?

• A) Only plants
• B) Only animals
• C) Both A and B

Q180: Study of relationship of organisms to their environment is called?

• A) Embryology
• B) Ecology
• C) Ethology