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Oksana_A [137]
3 years ago
10

(Select all correct answers)

Biology
1 answer:
alexandr402 [8]3 years ago
8 0

Answer: It must be based on scientific observations that can be repeated in a controlled setting.

Explanation:

A scientific claim is the claim which includes statement(s) which is verified by the observations obtain after multiple experimental trials or procedures in a controlled experiment. A scientific claim can only be considered as wrong when a valid argument or prove satisfies the fact why it is wrong.

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Identify each event as the result of mechanical weathering or chemical weathering.
kow [346]

<h3><u>The following events are identified as chemical weathering:</u></h3>
  • The minerals in a marble statue react with water to form acids and pores in the structure.
  • The rocks in a region are streaked orange after being exposed to repeated rains.

<em><u>Reason: </u></em>

When the weathering process occurs due to <em>chemical reaction</em>, then it is considered as chemical weathering.

In <em>the first case</em>, minerals of marble statue are <em>reacting</em> with water to cause weathering. In the <em>second case</em>, due to the <em>acidificaion reaction</em>, the change of the color has happened after exposure to the repeated rains.

<h3><u>The following events are identified as Mechanical weathering:</u></h3>
  • A piece of rock crumbles after being constantly thrashed by strong waves.
  • Industrial runoff forms cracks in a rocky structure in its path.

<em><u>Reason:</u></em>

When the rock is broken into simple pieces <em>without any chemical reaction </em>it is considered as mechanical weathering.

In the <em>first cause</em>, due to the <em>abrasion</em> caused by the strong waves, weathering has happened, in the <em>second case</em> industrial run off may be of varying temperature and thus may cause <em>heating or cooling</em> of the rock and causes weathering.

8 0
3 years ago
What is air pressure? At what elevation is air<br> pressure the highest? Why?
Step2247 [10]

Answer:

With greater depth of the atmosphere, more air is pressing down from above. Therefore, air pressure is greatest at sea level and falls with increasing altitude. On top of Mount Everest, which is the tallest mountain on Earth, air pressure is only about one-third of the pressure at sea level.

5 0
3 years ago
PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! <br> ILL GIVE 40 POINTS .
Vinvika [58]

Answer:

The answer to the question is C

Explanation:

It is used for all I and II and III

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You are asked to smell a solution in a beaker. what is the best way of doing this?
astraxan [27]
The best way of doing it without potentially causing harm to yourself, would be "wafting". 
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3 years ago
Staphylococci are irregular___cluster like grapes.
Marizza181 [45]

Answer:

Staphylococcus aureus is a gram-positive

Explanation:

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