Explanation

Energy is measured in units of kilocalories

One kilocalorie  is equal to 4.18 kilojoules.

The amount of energy a food contains per gram is known as its energy density,

So we can describe fat as more energy-dense than protein or carbohydrate.

Explanation

Wind blows from areas of high pressure to areas of low pressure.

This is because air molecules move from areas of higher concentration (high pressure) to areas of lower concentration (low pressure) to equalize the pressure difference.

This movement of air is what we feel as wind.

Explanation

The Equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres.

It lies equidistant from the North and South Poles.

Explanation

• The Pakistan Space and Upper Atmosphere Research Commission (SUPARCO) was established in 1961.
• It was originally formed as a Committee in 1961 and gained Commission status in 1981.
• The SUPARCO is Pakistan's national space agency and is responsible for the development of space technology and its peaceful applications in the country.
• It is headquartered in Islamabad and has technical facilities in Karachi, Lahore, Multan, Quetta, Peshawar and Gilgit.

Explanation

Explanation

Geology focuses on the study of Earth’s structure, composition, and processes.

It forms the core subject in Earth science education.

Explanation

Geography is the study of the Earth, its physical features, and human activities.

It helps us understand landforms, climate, and the relationship between humans and the environment.

Explanation

Explanation:

1. Venus is the closest planet to Earth.

2. Earth is the second planet.

3. Mars comes after Earth in the order of planets from the Sun.

4. Jupiter is the fifth planet from the Sun and the largest planet in our solar system.

Explanation

Newton's Law of Gravitation states that every particle attracts every other particle in the universe with a force

That is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Explanation

Radioactivity was discovered by Henri Becquerel in 1896.

They discovered radioactivity proving that the uranium emitted radiation without an external source of energy such as the Sun

Marie Curie with her husband Pierre Curie, coined the term radioactivity.

In 1903, Henry Becquerel shared the Nobel Prize for Physics with Pierre and Marie Curie

Ernest Rutherford did many experiments studying the properties of radioactive decay (alpha, beta, and gamma)