Question

In thermal power plants, fossil fuels are burnt to produce heat which in turn
converted into electrical energy. But the power plants which convert the kinetic
energy of flowing water into electricity are called hydro power plants.
4.1) Write one advantage of hydroelectricity.
4.(ii) The source of fuel in thermal power plant is
(a) petroleum
(b) CNG
(c) Coal
(d) LPG
4.(ii) Write one disadvantage of producing electricity by flowing water.
4.(iv) Burning of fossil fuels causes global warming due to production of
(a) natural gases
(b) carbon dioxide
(c) nitrogen
(d) oxygen
4. One advantage of hydroelectricity is that it us environment friendly as water is a renewable source of
energy and it is abundant in nature and readily available.
4. (W) (c) The soruce of fuel in thermal power plant is coal.
4. (1) Construction of dams leads to ecological damage by decreasing fertility of the crops.
(
4. (v) (b) Burning of fossil fuels causes global warming due to production of carbon dioxide gas.
Which component is being reduced in the given reaction?
CuO+H2 Cu +H20​

Answer 1

Answer:

kadhi 1ell as Los walk ous sqviwibcudwvdu1zvgzjhsuhajoia

Answer 2

Answer:

cannibals nannakamamsnbdakx nxamMx xnjakxnbzjajzxbhsjxnbsjabxbdja