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miss Akunina [59]
3 years ago
13

3. 150 marlin were captured, tagged, and returned to the deep ocean, where they live,

Biology
1 answer:
san4es73 [151]3 years ago
8 0
283 marlins; 89% increase (i rounded but raw percentage would be 88.6%)
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HELP I need a lab report for edginuity, I will give brainiest. It is on elecrro magnets and magnetic fields if you have already
meriva

Answer:

please add brainliest

Introduction Magnets have existed for hundreds of thousands of years and have been used by many different cultures throughout this time. Magnets have been useful throughout the years because they can hold two things together just through the force of the metal in the magnet. With the world’s constantly changing technology, electromagnets have been evolved from magnets and are more useful than a regular magnet but in order for an electromagnet to work, an electric current needs to be present

Whether a material is magnetic depends on the material’s atoms”. A material’s atoms can effect what different materials that the magnet can pick up. Everything in the universe is made up of atoms and electrons. The electron moves around the atom and as it does this, it creates a magnetic field. In materials such as aluminum and copper, the magnetic fields of those certain atoms delete each other making the materials not magnetic. “In materials such as iron, nickel, and cobalt, groups of atoms are in tiny areas called domains. The north and south poles of the atoms in a domain line up and make a strong magnetic field. The arrangement of domains in an object determines whether the object is magnetic or not”. Because magnetic materials contain domains, this makes the material magnetic and attract other magnetic objects. What are the different kinds of magnets? Magnets are made up of many different materials such as “iron, nickel, cobalt, or a mixture of these metals”. Ferromagnets are created with those metals and produce strong magnetic properties. “A mineral magnetite is an example of a naturally occurring ferromagnet” from the combination of stronger metals. Another kind of magnet is the electromagnet. This kind of magnet is made from an electric current and an electromagnet consists of an iron core. Magnets can also be classified as

Explanation:

5 0
3 years ago
___ are ionic compounds that produce positive hydrogen<br> ions when dissolved in water.
Liula [17]

Answer:

Acids

Explanation:

Acids are ionic compounds that produce positive hydrogen ions when dissolved in water. Acids taste sour. They conduct electricity when dissolved in water. They also react with metals to produce hydrogen gas.

7 0
3 years ago
Many scientists suggest that billions of years ago,
Maru [420]
I think your anwser would be all of the above but you don't have it

7 0
3 years ago
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ladessa [460]

Answer:

Mass doesn't change no matter where you are or where you go.

Explanation:

Mass is what you or an object consist of. You cant change mass

3 0
3 years ago
On the ph scale which value is considered neutral <br> A-7<br> B-5<br> C-11<br> D-2
mariarad [96]

Answer:

the answer is letter A-7

5 0
2 years ago
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