Question

Circle the odd one. One has been done for you.
1. Oxygen) Carbon monoxide. Sulphur dioxide (Hint: Impurities in air; circle the one that is por
an impurity in air.)
2. Nitrogen, Carbon dioxide Helium (Hint: Inert gases)
3. Neon, Argon, Oxygen (Hint: Inert gases)
4. Respiration, Combustion, Photosynthesis (Hint: Require oxygen)
5. Deforestation, Automobile exhaust. Eco-friendly products (Hint: Lead to air pollution)
CTION IL​

Answer 1

Answer:

1. OXYGEN

2. CARBON DIOXIDE

3. OXYGEN

4. COMBUSTION

5. ECO-FRIENDLY PRODUCTS

Explanation:

1. Oxygen is not an impurity for the sir.

2. CO2 is not an inert gas.

3. Oxygen is not a noble gas.

4. Combustion is not a biological (natural) process

5. Eco friendly products dont lead to air pollution

HOPE IT HELP