Complete Exercise 5.1: Air and Atmosphere presented in a clear Q&A format

EXERCISE 5.1: SECTION A - FILL IN THE SPACES BY CHOOSING THE CORRECT WORDS IN THE BRACKETS.

Select the correct word for each observation.

1. Oxygen is necessary for respiration and ________. -- Select Answer -- Photosynthesis Combustion

2. The envelope of air surrounding the earth is the ________. -- Select Answer -- Exosphere Atmosphere

3. The life supporting constituent of air is ________. -- Select Answer -- Nitrogen Oxygen

4. Products of combustion turn anhydrous copper sulphate ________. -- Select Answer -- Yellow Blue

5. Clear limewater exposed to air for some time turns ________. -- Select Answer -- Milky Pink

Score: 0 / 5

Complete all questions to see your rank!

EXERCISE 5.1: SECTION B  - STATEMENTS GIVEN BELOW ARE INCORRECT, WRITE THE CORRECT STATEMENTS.

🔧 Statement Repair Shop LOL 😅😂😁😃😄

These sentences are broken! Click the correct "Repair Part" to fix them.

1. "The products of combustion are nitrogen and water vapour."

✅ Fixed: Carbon Dioxide and water vapour!

2. "Coal is a household fuel."

✅ Fixed: Coal is an Industrial fuel!

3. "LPG is an incombustible gas used to extinguish fire."

✅ Fixed: LPG is a combustible household fuel!

4. "Water turns blue anhydrous copper sulphate colourless."

✅ Fixed: Turns white anhydrous copper sulphate into blue!

5. "Oxygen is not necessary for plant respiration."

✅ Fixed: Oxygen is necessary for plants too!

Repairs Completed: 0 / 5