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MariettaO [177]
3 years ago
13

WILL MARK BRAINLIEST FOR CORRECT ANSWER WORTH 25

Biology
1 answer:
Korolek [52]3 years ago
6 0

The answer to the first one is A and the answer to the second one is D

Hope this helps and is the brainliest!

You might be interested in
2)
Rashid [163]

900J

Explanation:

Given parameters:

Specific heat of the aluminium = 900Jkg⁻¹K⁻¹

Mass of aluminium = 0.5kg

temperature change = 2K

Unknown:

Quantity of heat = ?

Solution:

The quantity of heat a body absorbs to cause a change in temperature is given as:

  H  = mcΘ

H is the quantity of heat

m is the mass of the substance

c is the specific heat capacity

Θ is the temperature change

 

   H = 0.5 x 2 x 900 = 900J

learn more;

Specific heat brainly.com/question/7210400

#learnwithbrainly

3 0
4 years ago
Why do plants of the fields become yellowish?​
aliina [53]

Answer:

Poor drainage or improper watering

Explanation:

Water issues — either too much or too little — are the leading reason behind yellow leaves. In overly wet soil, roots can't breathe. They suffocate, shut down and stop delivering the water and nutrients plants need. Underwatering, or drought, has a similar effect.

5 0
3 years ago
Chemically speaking, enzymes are composed of chains of _________________, and they are considered to be a type of ______________
riadik2000 [5.3K]
All proteins are composed of amino acids. Each amino acid in a protein is linked by chemical bonds. Enzymes are composed of chains of amino acids. Enzymes are a type proteins that turn a cell into a highly developed miniature factory carrying out chemical reactions very fast.
7 0
3 years ago
Read 2 more answers
The fossil record shows that the average size of black bears was large during cold glacial periods and got smaller during warmer
snow_tiger [21]

Answer: directional

Explanation:

Because only one trait was favored. When bears are cold, being bigger helps them better adapt to the coldness. Adjusting to the weather is one trait.

3 0
3 years ago
Of all the water on the earth, only about 3% is fresh water. 68% of all the freshwater is frozen as glaciers and is unavailable
AleksAgata [21]

Answer:

The correct answer is statement A.

Explanation:

The procedure of purifying ocean water, that is, the saline water so that it can become suitable for drinking is termed as desalination. Almost 70 percent of the Earth is covered with water and of this only 3 percent is used for drinking purposes. On a huge scale, the process of desalination would require the boiling of water, which would eventually require an enormous amount of energy.  

Reverse osmosis and electro-dialysis are the methods used for desalination. However, these procedures are very costly and cannot be performed on a huge level as it can affect the economy of various countries.  

5 0
3 years ago
Read 2 more answers
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