List of top Global and Regional Environmental Issues Questions asked in GATE ES

Which one of the following is NOT a greenhouse gas?

A boiler in an industry, located where high plume rise is expected, releases flue gas with fine particulate matter. Which one of the following options is most suited and efficient if this particulate matter is intended for reuse?

Match the following: \[ \begin{aligned} \text{J) Dalton’s law} & & i) \, \text{Diffusion} \\ \text{K) Fick’s law} & & ii) \, \text{Pressure exerted by a mixture of gases} \\ \text{L) Henry’s law} & & iii) \, \text{Gravitational settling} \\ \text{M) Stoke’s law} & & iv) \, \text{Gas-liquid phase transfer} \\ \end{aligned} \]

Read the following statements: I. Trivalent chromium has relatively low aqueous solubility, and low mobility in the soil environment. By contrast, hexavalent chromium has a higher aqueous solubility and greater mobility in the soil environment.
II. The chemical reaction between trivalent chromium and zero-valent iron will result in transformed version called hexavalent chromium.
III. Hexavalent chromium is a known carcinogen.
IV. Trivalent chromium has relatively higher human toxicity as compared to hexavalent chromium.
The correct choice is:

Read the following statements:
I. According to the Liebig’s law of minimum, the growth is regulated by the limited factors i.e., resources in scarcity and not by the resources in abundance.
II. Shelford’s law of tolerance states that, only the factors present in excess/abundance can affect the growth, development of an organism or rate of biological process.
III. Shelford’s law of tolerance states that, an organism's success is based on a complex set of conditions and that each organism has a certain minimum, maximum, and optimum levels of environmental factor or combination of factors that determine success.
The correct choice is: