Explanation

The energy of the sun is the original source of most of the energy found on earth.

The principal source of energy: the Sun

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ND10-1-2023

Explanation

The enzyme that synthesizes DNA,

DNA polymerase can only add nucleotides to an already existing strand or primer of DNA or RNA that is base paired with the template.

ND5-07-2023

Explanation

The loudness of a sound depends on the Amplitude of the vibration

 Loudness is proportional to the square of the amplitude

if the amplitude is increased by three times, the loudness also increases by nine times.

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ND4-12-2022

Explanation

Cations are positively charged ions. 

Cations are formed when a metal loses its electrons.

Explanation

Fathom is used to measure the depth of water or the length of a nautical rope or cable.

A fathom is six feet, or 1.8288 meters.

Explanation

The Earth is the fifth largest planet in the solar system. 

The order of the planets by size is:

1. Jupiter (largest)
2. Saturn
3. Uranus
4. Neptune
5. Earth
6. Venus
7. Mars
8. Mercury (smallest)

Explanation

An enzyme is a biological catalyst and is almost always a protein.

Enzymes are organic catalysts. 

A large protein enzyme molecule is composed of one or more amino acid chains called polypeptide chains. 

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Explanation

ND5-5-2023

Explanation

In the Fahrenheit scale:

• The freezing point of water is 32°F
• The boiling point of water is 212°F

Explanation

The element required for solar energy conversion is silicon.

Silicon is the most common semiconductor material: Silicon is used in about 95% of solar cells sold today. 

Silicon is a naturally occurring element: Silicon is the second most abundant element on Earth, after oxygen.