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 |
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 |
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. | 227Ac89 ⇾223Fr87 | |
b. | 238U92 234Th90 | |
c. | 213Bi83 ⇾213Po84 | |
d. | 226Ra88 ⇾222Rn86 |
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 |