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2.

How many salivary glands are in your mouth??????????

4
1
3
5
7

Correct Answer

A. 3

Explanation

There are three salivary glands in the mouth. These glands, known as the parotid, submandibular, and sublingual glands, are responsible for producing saliva, which helps in the digestion of food and keeps the mouth moist.

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3.

What is the theory of quantas called

Theory of relativity
Quantam theory
Crystal theory
A and b
None OF THEse

Correct Answer

A. Quantam theory

Explanation

The correct answer is "quantum theory." Quantum theory is a fundamental theory in physics that describes the behavior of particles at the quantum level. It explains the discrete nature of energy and the wave-particle duality of matter and energy. The theory revolutionized our understanding of the microscopic world and is widely accepted in the scientific community. The theory of relativity, on the other hand, deals with the behavior of objects in the presence of strong gravitational fields or at speeds close to the speed of light. Crystal theory is not a recognized scientific theory.

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4.

The energy mass conversion is

Correct Answer
e = mc2

Explanation
The equation e = mc^2 represents the energy-mass equivalence in physics, as stated by Albert Einstein's theory of relativity. This equation shows that energy (e) is equal to the mass (m) multiplied by the speed of light (c) squared. It implies that mass can be converted into energy and vice versa. This equation has significant implications in understanding the relationship between mass and energy and has been confirmed through various experiments and observations.

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5.

What does c mean in physics

Light
Speed of light
Square
Cubic
None

Correct Answer

A. Speed of light

Explanation

In physics, the symbol "c" represents the speed of light. The speed of light in a vacuum is a fundamental constant in physics, denoted by the letter "c". It is approximately equal to 299,792,458 meters per second. The speed of light plays a crucial role in various theories and equations in physics, such as Einstein's theory of relativity.

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6.

How many species of mammals are there?!!!!!

4000
100
23000
4500
None

Correct Answer

A. 4500

Explanation

There are approximately 4,500 known species of mammals. This number includes a wide range of animals such as primates, rodents, carnivores, and marine mammals. Mammals are characterized by their ability to nurse their young with milk and have hair or fur on their bodies. The diversity of mammal species can be found in various habitats around the world, from the rainforests to the oceans.

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Quiz Preview

How many salivary glands are in your mouth??????????

What is the theory of quantas called

The energy mass conversion is

What does c mean in physics

How many species of mammals are there?!!!!!