(A) Soil cancer (X)
(B) Global warming  ()
(C) Stone cancer  (X)
(D) Deforestation (X)

Answers: Damage to building and stone statues caused by acid rain is commonly called Global warming.

(A) pascal ()
(B)  joule (X)
(C) tesla (X)
(D) henry (X)

Answers: The SI unit of “pressure” is pascal.

(A) night blindness (X)
(B) scurvy (X)
(C) rickets ()
(D) hair fall (X)

Answers: Deficiency of Vitamin-D results in rickets.

(A) 5,000 to 10,000 (X)
(B) 15,000 to 20,000 ()
(C) 10,000 to 15,000 (X)
(D) 20,000 to 25,000 (X)

Answers: Each day human body breathe in 15,000 to 20,000 liters of air.

(A) Hydrogen (X)
(B) Carbon Dioxide (X)
(C) Silicon (X)
(D) Oxygen ()

Answers: The most abundant element in the Earth’s crust is Oxygen.

(A) Oxygen (X)
(B) Carbon Dioxide (X)
(C) Hydrogen ()
(D) Silicon (X)

Answers: The most abundant element in the universe is Hydrogen.