Explanation

Except at the magnetic pole, the Earth's magnetic field is always horizontal

 the horizontal component of the earth's magnetic field is zero at the magnetic poles.

Hence, Earth's magnetic field always has a horizontal component except at the magnetic poles where it is zero.

Explanation

The planets called inner planets are

 Mercury, Venus, Earth Mars

The inner planets closest to the Sun.

They are also called the "terrestrial planets" because they are made mostly of rock and metal.

The outer planets are Jupiter, Saturn, Uranus, and Neptune.

SH2-8-2023

Explanation

The value of g at a particular point outside the earth is 10 m/s2.

Explanation

Earth has the highest density of any planet in the Solar System, at 5.514 g/cm3.

This is considered the standard by which other planet's densities are measured.

Explanation

An annular solar eclipse, also called the ring-of-fire eclipse, will be visible in Pakistan on December 26, 2019.

Explanation

Telecommunications satellites are usually placed in geostationary Earth orbit (GEO).

GEO is a circular orbit 35 786 kilometers above Earth's equator and follows the direction of Earth's rotation.

NA23-7-2023

Explanation

Sunlight entering the water may travel about 1,000 meters into the ocean under the right conditions,

but there is rarely any significant light beyond 200 meters.

The ocean is divided into three zones based on depth and light level.

The upper 200 meters of the ocean is called the euphotic, or "sunlight," zone

ND5-07-2023

Explanation

We see the sunrise and sunset because of Earth's rotation about its own axis.

Earth is rotating about its own axis from West to East.

So, when seen from the Earth,

the Sun appears to rise in the East and set in the West

ND5-07-2023

Explanation

Jupiter is the largest planet in the Solar System according to size and known as the giant of the solar system

Explanation

Prayer offered during a lunar eclipse is Namaz e Khusoof

and 

Namaz-e-Kasoof (نماز کسوف) is offered at the time of the solar eclipse. 

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1. The lunar eclipse takes place when The shadow of the earth falls on the moon
2. There are three types of lunar eclipses:

a total lunar eclipse,

a penumbral lunar eclipse

and a partial lunar eclipse.

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ND4-12-2022