A. Kr
B. Ar
C. $\text{CO}_2$
D. He
E. Ne
Choose the correct answer from the options given below :
The question requires arranging specific atmospheric gases in increasing order of their abundance.
The approximate volume percentages of these gases in Earth's ambient atmosphere are crucial for ordering them.
| Gas | Symbol | Approx. Abundance (%) | Question Code |
| Krypton | Kr | $ \approx 0.0001\% $ | A |
| Helium | He | $ \approx 0.0005\% $ | D |
| Neon | Ne | $ \approx 0.0018\% $ | E |
| Carbon Dioxide | $\text{CO}_2$ | $ \approx 0.04\% $ | C |
| Argon | Ar | $ \approx 0.93\% $ | B |
Ordering the gases based on the data from least abundant to most abundant:
Therefore, the correct sequence in increasing order is A, D, E, C, B.
The derived sequence A, D, E, C, B corresponds to Option B.
| List - I (Decomposition Processes) | List - II (Function) |
|---|---|
| A. Leaching | I. Degradation of humus by microbes to release inorganic nutrients |
| B. Catabolism | II. Accumulation of a colloidal dark coloured amorphous substance, which is a reservoir of nutrients |
| C. Humification | III. Bacterial and Fungal enzymes degrade detritus into simpler inorganic substances |
| D. Mineralization | IV. Water soluble inorganic nutrients go down into the soil and get precipitated |
Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:
Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?