Match List – I and List – II and select the correct answer from the codes…
2014
Match List – I and List – II and select the correct answer from the codes given below :
List – I | List – II |
|---|---|
a. Flood | 1. Lack of rainfall of sufficient duration |
b. Drought | 2. Tremors produced by the passage of vibratory waves through the rocks of the earth |
c. Earthquake | 3. A vent through which molten substances come out |
d. Volcano | 4. Excess rain and uneven distribution of water |
Codes :
Answer: A. a b c d 4 1 2 3 — Concept: A “match the two lists” item is decided by definition-anchoring, never by the printed order of the lists. Every natural hazard is identified by its…
- A.
a
b
c
d
4
1
2
3
- B.
a
b
c
d
2
3
4
1
- C.
a
b
c
d
3
4
2
1
- D.
a
b
c
d
4
3
1
2
Attempted by 1 students.
Show answer & explanation
Correct answer: A
Concept: A “match the two lists” item is decided by definition-anchoring, never by the printed order of the lists. Every natural hazard is identified by its own distinctive causal mechanism — the physical process that produces it — so each name in List – I belongs with the single description in List – II that states that mechanism, and each description is used exactly once.
Application: Take each hazard in turn and name the mechanism it is defined by.
Flood is a hydrological hazard: it occurs when the water arriving in an area exceeds what the channels, soil and drainage can carry away. That is precisely “excess rain and uneven distribution of water” — description 4.
Drought sits at the opposite end of the same water balance: a sustained shortfall of precipitation lasting a season or longer. That is “lack of rainfall of sufficient duration” — description 1.
An earthquake is a seismic event: strain released along a fault radiates outward as elastic (vibratory) waves through rock, and the shaking felt at the surface is the passage of those waves. That is “tremors produced by the passage of vibratory waves through the rocks of the earth” — description 2.
A volcano is the surface opening of a magma conduit: molten rock, gas and ash rise through the crust and escape through that opening. That is “a vent through which molten substances come out” — description 3.
List – I | Matched description from List – II |
|---|---|
a. Flood | 4. Excess rain and uneven distribution of water |
b. Drought | 1. Lack of rainfall of sufficient duration |
c. Earthquake | 2. Tremors produced by the passage of vibratory waves through the rocks of the earth |
d. Volcano | 3. A vent through which molten substances come out |
Cross-check: Verify the pairing independently by splitting the four descriptions into their two natural families.
Descriptions 1 and 4 are the two ends of the water balance — deficit and excess — so between them they can serve only Drought and Flood, and in that order.
Descriptions 2 and 3 are both solid-earth processes, but they separate cleanly on what actually moves: 2 describes ground motion (waves travelling through rock), while 3 describes material discharge (molten matter escaping through an opening). That fixes Earthquake and Volcano.
Each of the four descriptions is then used exactly once, and no other assignment satisfies all four pairs simultaneously.
The complete matching is therefore a – 4, b – 1, c – 2, d – 3.