NTA-NET (UGC-NET) Environmental Science (89): Questions 234 - 237 of 1711

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Question 234

Appeared in Year: 2015

Question MCQ▾

Consider the following International agreements.

(I) The International Treaty on Plant Genetic Resources for Food and Agriculture

(II) The United Nations Convention to Combat Desertification

(III) The World Heritage Convention

Which of the above has/have a bearing on the biodiversity?

Choose the correct answer: (June)

Choices

Choice (4)Response

a.

(I) and (II) only

b.

(III) only

c.

(I) , (II) and (III)

d.

(I) and (III) only

Edit

Question 235

Appeared in Year: 2020

Question MCQ▾

Which among the following is short-lived species in the atmosphere?

Choices

Choice (4)Response

a.

N2O

b.

OH Radical

c.

CH4

d.

CO

Edit

Question 236

Appeared in Year: 2009

Question MCQ▾

Which of the transmutation does not take place by α-decay? – (December)

Choices

Choice (4)Response

a.

227Ac89223Fr87

b.

238U92 234Th90

c.

213Bi83213Po84

d.

226Ra88222Rn86

Edit

Question 237

Appeared in Year: 2018

Question MCQ▾

If the ion density in a high temperature fusion plasma consisting of deuterium and tritium fuel is , the minimum confinement time required for nuclear fusion to produce net energy will be: (July)

Choices

Choice (4)Response

a.

0.25 s

b.

4.0 s

c.

0.5 s

d.

0.4 s

Edit