Question
Which points should be considered while selecting fuel for ourselves?

Answer

  • Following points should be considered while selecting fuel for ourselves:
  • $(1)$ How much heat does it release on burning?
  • $(2)$ Does it produce lot of smoke?
  • $(3)$ Is it easily available?
  • $(4)$ What are the factors which would limit our choices?
  • $(5)$ Would the fuel selected also depend on the work to be done?
  • $(6)$ Would we choose one fuel for cooking and another for heating the room in winter?

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A study found that children with light coloured eyes are likely to have parents with light coloured eyes. On this basis, can we say anything about whether the light eye colour trait is dominant or recessive ? Why or why not?
Prashant was going to his office in his car. While driving his car, Prashant saw a man behind him on a motorcycle through his rear-view mirror. A woman was also sitting behind the man on the motercycle. Through his rear-view mirror, Prashant noticed that the saree of the woman was almost touching the spokes of the motorcycle wheel. He signalled the motorcyclist to stop and alerted the woman. She tied her saree properly and thanked Prashant for the alert.
(1) What type of mirror is used as a rear- view mirroг?
(2) State two characteristics of the image formed by such a mirror.
(3) What values are displayed by Prashant in this incident?
Why don’t two magnetic field lines intersect each other?
A domestic circuit has a line of $5 A$ rating. How many lamps of ratings $40 \ W$. $220 \ V$ can be run simultaneously on this line safely ?
Explain the terms analogous and homologous organs with examples.
Write short note: $ATP$
What are the advantages and disadvantages to build dams?
Give scientific reason:
It is not advisable to connect an electric bulb and electric heater in series.
A solution of a substance $‘X’$ is used for whitewashing. $(1)$ Name the substance $‘X’$ and write its formula. $(2)$ Write the reaction of the substance $‘X’$ named in $(1)$ above with water.
Why is the use of iodised salt advisable?