Pakistan MCQs

The respiratory system brings air to gas-exchange surfaces.
Oxygen enters blood and carbon dioxide leaves.

The first letter moves backward and the second moves forward.
After W-D comes V-E.

The respiratory system brings air to gas-exchange surfaces.
Oxygen enters blood and carbon dioxide leaves.

Letters and numbers both increase by two.
After G7, the next term is I9.

Alveoli have thin walls and rich capillary networks.
Their large surface area supports rapid diffusion.

Coulomb's law describes electrostatic force between point charges.
The force acts along the line joining the charges.

Electric field is a vector quantity E=F/q.
Its direction is the force direction on a positive test charge.

'Although' introduces a contrast between the rain and the continuation of the match.
It is a subordinating conjunction of concession.

'Unless' means except if and states a necessary condition.
Entry is denied without the identity card.

'So that' introduces the purpose of saving money.
The laptop purchase is the intended result.

'Whereas' contrasts the preferences of the two sisters.
It joins two clauses with opposing information.

A simple sentence contains one independent clause.
It may include phrases but has no additional dependent or independent clause.