NTA-NET (UGC-NET) Environmental Science (89): Questions 54 - 56 of 1711

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Question 54

Appeared in Year: 2016

Question MCQ▾

Underground coal mine fires can best be monitored by remote sensing technique in the spectral region: (July)

Choices

Choice (4)Response

a.

3 – 5 μm

b.

1 – 3 μm

c.

1 mm – 10 mm

d.

10 – 12 μm

Edit

Question 55

Appeared in Year: 2018

Question MCQ▾

Reference data or ground truth data is used for the following purposes in remote sensing:

(i) To aid in the analysis and interpretation of remotely sensed data

(ii) To calibrate a sensor

(iii) To verify information extracted from remote sensing data

Choices

Choice (4)Response

a.

Only (i) and (iii)

b.

(i) , (ii) and (iii)

c.

Only (ii) and (iii)

d.

Only (iii)

Edit

Question 56

Appeared in Year: 2019

Question Match List-Ⅰ List-Ⅱ▾

Match the following discontinuities with boundaries they are found at: (December)

List-Ⅰ (Discontinuities)List-Ⅱ (Boundaries between)
(A)

Conrad discontinuity

(i)

Lower crust and upper mantle

(B)

Mohorovicic discontinuity

(ii)

Hydrosphere and crust

(C)

Gutenberg discontinuity

(iii)

Lower mantle and outer core

(D)

Lehman discontinuity

(iv)

Outer core and inner core

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (i)
  • (ii)
  • (iv)

b.

  • (ii)
  • (iv)
  • (i)
  • (iii)

c.

  • (i)
  • (ii)
  • (iv)
  • (iii)

d.

  • (ii)
  • (i)
  • (iii)
  • (iv)

Edit