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Anastaziya [24]
3 years ago
11

The arctic region is a treeless plain with frozen ground. true or false

Biology
1 answer:
Brums [2.3K]3 years ago
3 0

Answer: Its True, They are largely treeless because its the arctic.

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Select all the correct answers. which two statements about composite materials are true? they’re made up of more than one substa
Dima020 [189]

Correct Statements are -

  • They’re made up of more than one substance.
  • They’re readily available in nature.
<h3>What are Composite Materials?</h3>
  • Composite materials are created by combining two or more substances with dissimilar properties.
  • Composite materials have distinct properties that distinguish them from their constituents, and the constituents can be easily distinguished within the composite materials because they do not blend together.
  • Some composite materials are abundant in nature. Wood, for example, is a composite material made up of cellulose and lignin.

To learn more about Matter from the given link

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3 0
2 years ago
What is the main reason that it takes 2 to 3 minutes for the reaction to occur between sucrose and sulfuric acid in the dehydrat
Ludmilka [50]

The main reason for this activity is the activation energy needs to be overcome in the reaction.

<h3>What do you mean by Dehydration?</h3>

Dehydration may be defined as a process where there is a removal or loss of water takes place from something.

When the reaction between sucrose and and sulfuric acid is carried, it may leads to dehydration of sucrose. As a result of this, activation energy requires to come up in the reaction.

Therefore, the main reason for this activity is the activation energy needs to be overcome in the reaction.

To learn more about the activation energy, refer to the link:

brainly.com/question/24749252

8 0
2 years ago
Who devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations?.
Dominik [7]

Landsteiner Bertillon devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations.

<h3>What about blood group?</h3>
  • According to the presence or absence of antibodies and hereditary antigenic compounds on the surface of red blood cells, blood is classified according to its type.
  • Depending on the blood group system, these antigens could be proteins, carbohydrates, glycoproteins, or glycolipids.
  • The genes that a person got from their parents determine what blood type they have.
  • There are numerous systems for classifying blood types, but ABO is the most popular one.
  • The ABO group is divided into four main categories: A, B, O, and AB.
  • There are eight more blood types within these groupings.
  • Each of the eight blood types has a particular ability to save lives.
  • The majority of people (37% of the population) have the blood type O+, which is the most prevalent. This indicates that there is a greater need for this blood type for blood transfusions.

Learn more about blood group here:

brainly.com/question/15289194

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6 0
1 year ago
An organism that obtains nutrients and shelter from a different organism while doing nothing to support the survival of that org
Solnce55 [7]
THIS TYPE OF RELATIONSHIP IS CALLED "COMMENSALISM"
5 0
3 years ago
Are chemical compounds that contain carbon and hydrogen atoms called petrochemicals?
atroni [7]

Answer:False

Explanation:Fossil fuels are the energy-rich substances

5 0
2 years ago
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