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Nostrana [21]
3 years ago
6

I need it now

Biology
1 answer:
SCORPION-xisa [38]3 years ago
6 0
 <span>c.)The product only has different physical properties than the reactants because a chemical reaction occurred.

This is because rust can behave differently than oxygen and iron. This is because a chemical reaction has happened- a chemical reaction is when a new product is formed. Rust can be change chemically and physically. </span>
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The mass of a star can be determined by studying _____.
Lilit [14]

<u>Answer</u>:

The mass of a star can be determined by studying binary star systems.

<u>Explanation</u>:

In this system it consists of two stars, revolving round the same bary-centre. The systems having two or may say more than two are called as the multiple star system. This zone is also a habitable zone, here the water exists in the liquid form. We could have sometime seen the two stars together. They are also very capable of strengthening the terrestrial planets inside the stable orbital ranges. They have generally two orbits like P-type as well as circumbinary.  

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How does the digestive system work with the muscular system?
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<span>Receptors in muscles provide the brain with information about body position and movement. The brain controls the contraction of skeletal muscle. The nervoussystem regulates the speed at which food moves through the digestive tract.</span>
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3 years ago
A company discovers a coal reserve under a mountain. The company uses bulldozers to remove soil and flatten the top of the mount
RSB [31]

Answer:

The removal of soil will increase the rate of erosion and the flattening of the mountain will change the direction in which water flows off of the mountain.

3 0
3 years ago
Which climate factor involves a decrease in temperature due to lower air pressure?
Anastasy [175]
I think the answer is B.
4 0
3 years ago
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A water bottle is sitting in front of a poster. The letters seen through the water bottle appear larger. Explain why this is tru
dmitriy555 [2]

Answer: Light Refraction

Explanation:

Light rays travel in straight lines. When they strike an opaque surface, the rays bounce, and light is reflected back to your eye so that you see an image. When light strikes a transparent object, some of the light passes through. If that light strikes the object straight on, it continues to travel in a straight line. If the light enters the transparent object at an angle, though, it changes direction, bending.This bending of light is called refraction. Refraction occurs because light entering an object slows down. When it enters at an angle, one side of the light ray enters before the other, slowing down first.Looking from above, an object under water appears larger than it does in air. It's not that the image the light gave our eyes is bigger. It's that the image is actually closer to our eyes, since the light is not passing straight down, but is instead bending relative to the water's surface. Light passing straight down would be perpendicular to the water's surface, like the vertical line on the letter T.

5 0
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