I need help with the question in the photo!!

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Answer 1

Answer:

a semi-crystalline structure is formed, which holds the water molecules apart, making ice less dense than liquid water, such that it floats. This means that it insulates the water beneath, allowing organisms in the liquid water to survive. Cohesion is the tendency of molecules within a substance to ‘ stick together

explanation:

Answer 2

The person is right btw

Related Questions

Answer please 10 points science queasy

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Answer:

Look up cumulonimbus clouds it looks like b

I believe the answer would be B. Cumulonimbus looks mostly like that.

Is there a relationship between cohesion and volume?

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Cohesion is the attraction of water molecules to stick to each other, technically there would be a relation to cohesion and volume because the more the water droplets come together the more volume there is. But, volume is how much space a substance occupies so the actual definition of the two words is different.

the atomic number of an element is the number of ______ plus the number of _____ found in the element's nucleus.

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Answer:

protons and electrons

Explanation:

The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.

1. Protons 2. Neutrons?

Please help me with this question

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Answer:

Explanation:

Why do you think the Na+ ion is smaller than a neutral Na atom? Why do you think the Cl - ion is larger than a neutral Cl atom?

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Answer:

Na+ ion is smaller than a neutral Na atom in the ion there was one more proton which will attract electron bring it closer to the center making the atomic radius smaller. Therefore making a Na+ ion is smaller than a neutral Na atom Explanation:

yes

Why does the Earth spin faster at the equator than the poles?

a
Due to the temperature differences on Earth, the land/sea near the equator goes at a faster rate. The Earth spins faster there only during the summer months.
b
The Earth is much wider at the equator than at the poles. It must cover a larger distance in the same amount of time (24 hours).
c
Due to the tilt of the Earth on its axis, the equator gets more sunlight -- therefore making it spin faster.

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Answer:

Specifically, Earth rotates faster at the Equator than it does at the poles. Earth is wider at the Equator, so to make a rotation in one 24-hour period, equatorial regions race nearly 1,600 kilometers (1,000 miles) per hour. Near the poles, Earth rotates at a sluggish 0.00008 kilometers (0.00005 miles) per hour.

When an apple falls from a tree, when does gravity act on the apple?

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Gravitation Potential energy is converted into the Kinetic Energy, when it just reaches the ground. Some amount of energy is wasted in sound and heat energy when it strikes the ground. When the apple falls from the tree, it has some gravitational potential energy due to its height.

it has potential energy once it drops from the tree and a gravitational pull

The Dust Bowl was a time In the 1930s when prairie states in the Midwest had farmlands torn apart by wind erosion and storms. This disaster caused food shortages and financial hardship. What practice is most helpful to prevent another similar tragedy?

A. no-till farming to allow roots to hold soil together
B. over watering of fields to keep soil wet
C. terrace farming by putting walls up on hills
D. agricultural reform to change the types of crops planted

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D. I might be wrong but I learned this a while ago

Answer:

Explanation: The dust bowl killed many crops resulting to low nutrients

In a __________________ reaction, elements are not changed, just rearranged. Small amounts of energy take place.
a. Endothermic
b. Exothermic
c. Nuclear
d. Chemical

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D. Chemical.
In a chemical reaction, elements are not changed, just rearranged. Small amounts of energy take place.

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