Both Earth and Mars are terrestrial planets that orbit with our Solar System. Earth is the third planet from the Sun, whereas Mars is the fourth planet from the Sun.

Earth and Venus are neighbors of each other. Earth is the third planet from the Sun; whereas Venus is the second planet from the Sun.

A Hypothesis is a tentative statement which provides uncertain explanations regarding a phenomenon or event. It is widely used as a base for conducting tests and the results of the tests determine the acceptance or rejection of the hypothesis. Theory is the scientific explanation of an observed activity or a phenomenon. It explains the observations or events that are based upon any proven hypothesis. Therefore, a hypothesis forms the base for a theory.

A Hypothesis is an uncertain explanation regarding a phenomenon or event. It is widely used as a base for conducting tests and the results of the tests determine the acceptance or rejection of the hypothesis. On the other hand, prediction is generally associated with the non-scientific guess. It defines the outcome of future events based on the observation, experience and even a hypothesis. Hypothesis can also be defined in terms of prediction as it can also be a type of prediction which can be tested.

Fission and Fusion are two different kinds of nuclear reactions that produce energy, but they are opposite to each other. When an atom splits into two parts, either through natural decay or when initiated within a lab, it releases energy, this process is known as Fission. On the other hand, when two light atoms link together to make heavier once, this process is known as Fusion.

Both Earth and Jupiter are two different planets. The primary difference between both the planets are, Earth is the third planet from the Sun, whereas, Jupiter is the fifth planet from the Sun.

The primary difference between Earth gravity and Moon gravity is that, the moon’s gravity is weaker because the moon is less massive, whereas earth has more massive objects, which exerts more gravity.

The main difference between prokaryotes and eukaryotes is based on their different size and cell structure.

The key difference between Earth and Moon is that Earth is a planet, whereas moon is merely a satellite orbiting Earth.

The earth is a planet. The Earth is a sphere, and it revolves around the sun. A star is a luminous celestial body that has a spherical shape. It is made up of plasma, hydrogen, helium, etc.

kVa and kW are power factors. kVa is a unit of apparent power, which comprises of real and re-active powers, whereas kW is a unit of only real power.

Permutation and Combination are mathematical concepts. They are the different ways in which the objects may be selected from a set to form subsets. This selection of subsets is called a permutation when the order of selection is a factor, a combination when order is not a factor.

The main difference between the two cells is that prokaryotic cells basically have no nuclei, whereas eukaryotic cells do have true nuclei. Eukaryotic cells are larger and more complex than the prokaryotic cells.