Which country lies to the east of Pakistan?
Correct answer is: B. India
Pakistan’s largest eastern neighbour is India (shares long eastern border).
The water of which river is shared by India, China and Bangladesh?
Correct answer is: C. Brahmaputra
The Brahmaputra originates in China (Tibet), flows through India, then into Bangladesh before meeting the Meghna.
Chaj (Chaj/JeCh) Doab lies between which two rivers?
Correct answer is: C. Chenab & Jhelum
Chaj (Jech) Doab is the tract between the Jhelum and Chenab rivers. (Wikipedia)
The largest lake in the world (by area) is:
Correct answer is: B. Caspian Sea
Conventionally the Caspian Sea is treated as the world’s largest (inland) lake by surface area. (Wikipedia)
Which is the capital of Bulgaria?
Correct answer is: B. Sofia
Sofia is the capital city of Bulgaria.
Ice floats on water because:
Correct answer is: B. Water is denser than ice
Ice floats because ice is less dense than liquid water — water is denser than ice.
Taste buds are for:
Correct answer is: B. Selection/ Taste perception
Taste buds detect flavors (sweet, salty, sour, bitter, umami) — they help in selecting food (and detecting spoilage/toxins).
Soil erosion is caused by:
Correct answer is: A. Deforestation
Removal of vegetation cover (deforestation) increases runoff and accelerates soil erosion.
Which is the nearest major galaxy to Earth (outside the Milky Way)?
Correct answer is: B. Andromeda Galaxy
The Andromeda Galaxy (M31) is the nearest large spiral galaxy to the Milky Way (~2.5 million ly).
Which of the following is an example of a mineral acid?
Correct answer is: C. Sulfuric acid
Sulfuric acid (H₂SO₄) is a strong mineral (inorganic) acid; the others are organic acids.