Sulfur dioxide (SO2) is released from various sources including volcanic eruptions, automobile emissions, and industrial processes.

Using public transport helps reduce the number of vehicles on the road, thereby decreasing air pollution.

Using biodegradable materials helps reduce water pollution by minimizing the impact of waste on aquatic ecosystems.

All of the options listed are noble gases, which are found in group 18 of the p-block.

Natural gas is a non-renewable resource, as it is formed from fossilized organic materials over millions of years.

Alkali metals are good conductors of electricity due to their free-moving electrons.

Alkaline earth metals have a higher density than alkali metals.

Diatomic hydrogen (H2) is highly flammable and can easily ignite in the presence of oxygen.

Group 13 elements typically form covalent compounds due to their electron configuration.

Group 14 elements typically form covalent bonds due to their tetravalent nature.

Group 14 p-block elements typically form covalent bonds due to their valence electron configuration.

Group 15 elements, such as phosphorus, exist in multiple allotropes.

Group 17 elements, also known as halogens, are highly electronegative.

Halogens exist as diatomic molecules (e.g., Cl2, F2) in their elemental form.

Heavy water (D2O) has a higher boiling point than regular water (H2O).

Heavy water (D2O) has a higher boiling point than regular water (H2O).

Hydrogen chloride (HCl) is a gas at room temperature and is highly soluble in water.

Hydrogen chloride (HCl) is a colorless gas that is soluble in water.

Hydrogen gas is colorless and odorless.

Hydrogen is classified as a non-metal.

Lanthanide contraction refers to the decrease in atomic radius across the lanthanide series due to poor shielding of f-electrons.

Lanthanides are known for their high density and are typically metallic in nature.

Noble gases are colorless and odorless under standard conditions.

P-block metals, such as Lead and Tin, are generally brittle.

Carbon can form multiple bonds, such as double and triple bonds, due to its tetravalency.

Transition metals exhibit variable oxidation states due to the involvement of d-electrons in bonding.

Solar energy is a renewable energy source that can be harnessed without depleting natural resources.

Solar energy is a renewable source of energy that helps reduce environmental pollution compared to fossil fuels.

Solar energy is a renewable source of energy that can be harnessed without depleting natural resources.

Noble gases are known for their inertness and low reactivity, making high reactivity incorrect.