Pakistan MCQs

The Solar System lies within the Milky Way galaxy.
It is a barred spiral galaxy.

Successive increases are 2, 3, 4, and 5.
Adding 6 to 15 gives 21.

A light-year is a distance unit used in astronomy.
It is about 9.46 trillion kilometers.

Each term is the sum of the previous two.
Thus, 5 + 8 = 13.

Artificial satellites orbit Earth or other bodies.
They support communication, navigation, weather, and research.

Each term is doubled and increased by 1.
So 31 × 2 + 1 = 63.

A receiver compares arrival times from several satellites.
It calculates distance and solves for location and clock error.

Each term is multiplied by 3 and reduced by 1.
Thus, 41 × 3 - 1 = 122.

Igneous rocks crystallize from magma or lava.
Granite and basalt are common examples.

Layers of sediment become compacted and cemented.
Sandstone and limestone are examples.

Roots physically hold soil together.
Vegetation also reduces the impact of rain and surface runoff.

Renewable resources are naturally replaced relatively quickly.
Examples include sunlight, wind, and flowing water.