The Dead Sea, a salt lake bordered by Jordan and Israel, is famous for being one of the world’s saltiest bodies of water, allowing humans to easily float on its surface due to extreme buoyancy.
82. Nehru Institute of Mountaineering is in _______.
(A) Delhi
(B) Himachal Pradesh
(C) Ladakh
(D) Uttarakhand
Answer:
(D) Uttarakhand
Explanation:
The Nehru Institute of Mountaineering (NIM), established in 1965 to honor Pt. Jawaharlal Nehru’s love for the mountains, is situated in Uttarkashi in the state of Uttarakhand.
83. _______ is the name of _______ in Andhra Pradesh.
(A) Aam roti, Amavat
(B) Aampapad, Amavat
(C) Mamidi Tandra, Aampapad
(D) Mamidi Tandra, Amavat
Answer:
(C) Mamidi Tandra, Aampapad
Explanation:
Mamidi Tandra is the traditional regional Telugu name used in Andhra Pradesh for the sweet mango jelly snack known elsewhere in Hindi as Aam Papad.
84. An _______ floats in water but an _______ sinks in water.
(A) iron bowl, iron pin
(B) empty plastic bottle, bottle filled with water
(C) match stick, paper box
(D) stone piece, wooden block
Answer:
(A) iron bowl, iron pin
Explanation:
This question derives directly from the classic NCERT EVS poem “Why, Oh Why?”. An iron bowl floats because it displaces a large volume of water equal to its weight, whereas a solid iron pin is denser than water and sinks immediately.
(Note: The exam key marks B as correct, which aligns with another NCERT textbook experiment where an empty plastic bottle floats and a filled one sinks, but structurally option A matches the provided text list).
85. The outermost part of the seed called _______.
(A) Cotyledons
(B) Embryo
(C) Seed coat
(D) Skull
Answer:
(C) Seed coat
Explanation:
The seed coat is the tough, protective outer layer that encases the internal parts of a seed, protecting the embryo from physical damage and temperature extremes.
