Name any one historical monument that has been affected by acid rain.

Name any one guanotelic organism.

Name any two weak acids.

Name any two strong acids.

Name any one biodegradable synthetic polymer.

Light plays an important role in the life of all organisms. Name any three physiological processes in plants which are affected by light.

Assume that a spherical raindrop evaporates at a rate proportional to its surface area.If its radius originally is 3 mm and one hour later has been reduced to 2 mm,find the expression for the radius of the raindrop at any time t.

Wrtie the name of any one amino acid, sugar nucleotide and fatty acid.

These is an objective type question with 4 answer choices exactly one of which is correct. A student has not studied the topic on which the question has been set. The probility that the student guesses the correct answer is

Complete the paragraph by choosing the approprite words given in the brackets: (Nocardia, Geobacter, Ideonella sakaiensts. Pseudomonas, Alcanovorax borkumensis, hydrocarbonoclastic, Acidophillium, streptomyces) Bacteria like ................. spp. and ............ have the ability to destroy the pyridines and other chemicals. Hence, these bacteria are used to clear the oil spills. These are called .............. bacteria. It has been observed that species like Vibrio, ................. can decompose the PET. Similarly, species of fungi like ........ .... have ability of decomposing rubber from garbage. Sulphuric acid is source of energy for some species of bacteria like .............. Hence, these bacteria can control the soil pollution occurring due to acid rain. .. ...... - convert the salts of uranium into insoluble salts.