Question : Identify the segment in the sentence which contains a grammatical error.
A heat wave is declare when the maximum temperature hits 45° Celsius or is above 40° Celsius in summer.

Option 1: or is above

Option 2: is declare

Option 3: A heat wave

Option 4: when the

Question : The first law of thermodynamics is simply the case of:

Option 1: Charle's law

Option 2: Newton's law

Option 3: The law of heat exchange

Option 4: The law of conservation of energy

Question : One calorie of heat energy is equivalent to approximately ____________ joules of mechanical energy.

Option 1: 0.24

Option 2: 0.48

Option 3: 2.4

Option 4: 4.2

Question : Gliders depend on the following energy for their flight:

Option 1: wind energy

Option 2: electrical energy

Option 3: heat energy

Option 4: chemical energy

Question : ______ are also known as heat waves.

Option 1: Infrared waves

Option 2: Gamma rays

Option 3: Light waves

Option 4: X-rays