What is bacteria?
Is from science

Answers

Answer 1
Answer:
Bacteria
 are microscopic living organisms, usually one-celled, that can be found everywhere. They can be dangerous, such as when they cause infection, or beneficial, as in the process of fermentation (such as in wine) and that of decomposition.

Answer 2
Answer: Bacteria is a member of a large group of unicellular microorganisms that have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

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F has _valence electrons.
02
OOO
9
19

Answers

As far as I know it's 7

Explain the scientific meaning of the word random

Answers

Explanation:

In general the word random means by chance. The event that occurs unknowingly rather than according to plan is called at its randomness.

But in science, the word random relates with a type of event that is described by its probability distribution.

Also, random means the entropy of the system i.e. it is a thermodynamic quantity that represents the amount of energy in the system that is unavailable for doing work.

____ are solid while lines stretching across one or more lanes in the same direction, indicating the proper place to come to a stop at an intersction.

Answers

Stop lines are solid white lines painted across the traffic lanes at intersections and pedestrian crosswalks, indicating the exact place to stop.

a wagon is pulled at a speed of 0.40 m/s by a horse exerting an 1,800 newton horizontal force. what is the power of this horse.

Answers

1,800/0.40=4500 this is the equation you need F=ma then you take f which is 1800 and divided by a which is 0.40 to find m

3. Explain A friend notices that a nail that was left outside for a few month:seems larger and heavier than it was before. He says the nail is rusting disproves the Law of Conservation of Mass. Explain why he is wrong.

Answers

According to the law of conservation of mass of reactants before the reaction must be equal to the mass of the product. He is wrong because the nail is undergoing the process of rusting and after the rusting process mass of the product is increasing.

what is the law of conservation of mass?

According to the law of conservation of mass of reactants before the reaction must be equal to the mass of the product.

What is rusting?

Rusting is a form of oxidation. Rust is formed when iron combines with water and oxygen to generate hydrated ironoxide. Which is given by.

2Fe + 3O_2= Fe_2O_3

Nail contains iron when combined with oxygen results in the formation of ferrous oxide which is heavier than iron. That's why the mass of the product is more than the mass of reactants. ]

Hence after a few months seems larger and heavier than it was before.

To learn more about rusting refer to the link;

brainly.com/question/973790

How does lightning occur?

Answers


I've learned that lighting occurs when clouds  in the sky bump into each other. The harder the clouds bump into each other, the louder and bigger the lighting gets :D

The positive and negative electrons split in the cloud

Positive going to the bottom of the cloud and negative to the top.

Since you are made of negative electrons, you attract the positive electrons to you causing you to get struck by lightning.

The ground has negative electrons too!

This will shock the ground and end up shocking you as well, since the ground and you are connected.

Lightning and thunder are connected! They do happen at the same time. The reason why the thunder travels later than the lightning is because you are away from the lightning and the sound waves are just getting near you

B.) How are thunderstorms dangerous?

Thunderstorms are dangerous because they give off positive energy. If you are standing outside while a thunderstorm is in session, you could get shocked since you are made of negative energy and attract positive energy.

If your hair is sticking straight up, you are about to be struck by lightning. Crouch down and cover your head next to your ears and prepare for impact.

You might ask, "Why can't I just run from the lightning?" That is true, but since you aren't faster than light itself, you will still wind up caught in the storm.

Avoid this by staying inside.

Hope this helps <3