Question : Non-commercial energy sources are often used for:

Option 1: Industrial production
 

Option 2: Transportation
   

Option 3: Cooking and heating

Option 4: Electricity generation

Question : Non-commercial energy sources are often used for:

Option 1: Industrial production
 

Option 2: Transportation
   

Option 3: Cooking and heating

Option 4: Electricity generation

Question : Which of the following statements is incorrect?

Option 1: Metals react with oxygen to form basic oxides

Option 2: Non-metals are malleable

Option 3: Non-metals do not produce any sound

Option 4: Metals have low ionisation enthalpy

Question : Which of the following statements is Incorrect?

Option 1: Metals are used in making cookware.

Option 2: Metals are used in the manufacture of automobiles.

Option 3: Living beings inhale metals during respiration.

Option 4: Metals are used in manufacturing jewellery.

Question : Geothermal energy is considered a type of:

Option 1: Conventional energy source
   

Option 2: Non-conventional energy source
  

Option 3: Commercial energy source

Option 4: Non-commercial energy source