Engineering – study notes
Which of the following processes does NOT happen in the global carbon cycle? - ANS ✔✔Glucose is
formed during the decay process.
Fossil fuels are formed due to the interruption of the decay process in the carbon cycle. - ANS ✔✔true
The starting point of the formation of fossil fuels is the transformation of decaying organic matter to
kerogen. - ANS ✔✔true
Which of the following contributes to the formation of kerogen? - ANS ✔✔algae, micro-organisms,
trees
Kerogen derived from higher plants gets converted to crude oil and natural gas when buried inside the
earth for millions of years. - ANS ✔✔false
Kerogens are formed by the transformation of inorganic matter into an insoluble, polymeric material -
ANS ✔✔false
Kerogen formed from algae or plankton is derived from - ANS ✔✔fats, oils, waxes
Kerogen produced from higher plants gets converted into natural gas. - ANS ✔✔false
What is necessary for the fossil fuel formation? - ANS ✔✔temperature, pressure, time
Kerogens are produced from algae, planktons and higher plants with the help of decomposition by
bacteria. - ANS ✔✔true
How many hydrogen atoms are present in coal for one carbon atom? - ANS ✔✔0.8