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frutty [35]
3 years ago
7

Write two main group of animals​

Physics
1 answer:
Nesterboy [21]3 years ago
7 0

Answer:

Animals are classifield as two main groups in the animal kingdom : Vertebrates and invertebrates .

Explanation:

keep it up....

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In addition to filling lakes with sediment, why is eutrophication a biological concern?
jekas [21]
Aside from filling lakes with sediment, it is a biological concern which is the population of fish and other aquatic organisms will decrease due to the dissolved oxygen in the water decreasing dramatically. I hope my answer has come to your help. God bless and have a nice day ahead!
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3 years ago
Calculate the magnitude of the total angular momentum of the woman–disk system. (assume that you can treat the woman as a point.
Mrac [35]
 <span>I of disk = 1/2MR² = (0.5)(230)(4.0)² = 1840 kgm² 
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8 0
3 years ago
Why do we use other bonding theories in addition to the lewis model?
Setler [38]

Full Question:

Why do we use other bonding theories in addition to the lewis model?

a) Lewis model is not suitable for all molecules or ions. b) Lewis model cannot predict all of the properties of a molecule or ion. c) Lewis model is too complicated.

Answer:

b) Lewis model cannot predict all of the properties of a molecule or ion.

Explanation:

Lewis structures, also called electron-dot structures or electron-dot diagrams, are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in the molecule.

Lweis  model does not explain the geometry of molecules, how the bonds form, or how the electrons are shared between the atoms hence the need to use other bonding theories.

8 0
4 years ago
The behavior of gas are dependent on all of the factors
Slav-nsk [51]

Answer:

Explanation:

Pressure (P): the force exerted by gas molecules as they strike a given surface.

Volume (V): the space occupied by gas molecules.

Temperature (T): A measure of how fast gas molecules move (kinetic energy).

Amount (n): Amount in moles of gas molecules.

7 0
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What is Dark Matter?
AveGali [126]

Explanation:

dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×10⁻²⁷ kg/m³. Its presence is implied in a variety of astrophysical observations, including gravitational effects that cannot be explained by accepted theories of gravity unless more matter is present than can be seen. For this reason, most experts think that dark matter is abundant in the universe and that it has had a strong influence on its structure and evolution. Dark matter is called dark because it does not appear to interact with the electromagnetic field, which means it doesn't absorb, reflect or emit electromagnetic radiation, and is therefore difficult to detect.

5 0
4 years ago
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