Question

4. fuels formed from remains of plants and animals buried millions of years ago 5. splitting of the nucleus of an atom. 2 judicious and economic use of energy ​

Answer 1

$\bold { \red{CLARIFICATION: }}$

➵ Fuels formed from remains of plants and animals buried millions of years ago - Fossil Fuels

➵ Splitting of the nucleus of an atom - Nuclear Fission

➵ Judicious and economic use of energy - Energy Conservation

_________________ OR _______________

The four ways with which energy can be used judiciously are :

• Fossil fuels should be used for limited purposes when no other alternative source of energy is available .
• Energy wastage should be avoided .
• The practice of chopping down trees must be banned. More trees must be planted.
• Efforts should be made to utilize energy in groups/ community .