Explanation

Near Earth's surface, the acceleration due to gravity is 9.8 m/s2 (32 ft/s2).

This means that, ignoring the effects of air resistance,

the speed of an object falling freely will increase by about 9.8 meters per second (32 ft/s) every second.

Explanation

The human body's system of blood circulation was discovered by William Harvey.

He was an English physician.

He discovered the Circulatory System in 1628.

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Explanation

In physics, the smallest unit of matter is the atom.

It's the smallest unit of matter that can't be divided using any chemical means.

Atoms are made up of a nucleus surrounded by electrons.

Explanation

Methane is a chemical compound with the chemical formula CH4 (one carbon atom bonded to four hydrogen atoms).

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Explanation

HClO (hypochlorous acid) is the weakest acid among the given options.

The acidity of oxyacids of chlorine increases with the number of oxygen atoms bonded to chlorine.

Explanation

In a reversible adiabatic process, there is no heat exchange with the surroundings, meaning the system is isolated in terms of heat.

Since entropy is a measure of:

• heat energy dispersal
• no heat is exchanged
• the entropy change in a reversible adiabatic process is zero.
  

Explanation

Detailed Answer

One light year is equal to the distance that light travels in one year

(it is about ten trillion kilometers or six trillion miles).

A light year is a unit of distance.

The distance light travels in one year is known as light year.

A light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometers (9.46 x 1012 km) or 5.88 trillion miles (5.88 x 1012 mi)

Explanation

Explanation

Methane is the simplest of saturated hydrocarbons with a chemical formula CH4.

It consists of four hydrogen atoms and one carbon atom.

It is the simplest alkane.

Explanation

The largest blood vessel in the body is the: Aort

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The blood vessels that supply blood to heart muscles are: Coronary arteries

Blood vessels that carry blood away from the heart toward body tissues are called:  Arteries

The smallest blood vessels are called capillaries.