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katovenus [111]
3 years ago
5

Really need help on this asap giving out 15 points :)

Biology
2 answers:
OLEGan [10]3 years ago
4 0

Explanation:

1 chemical reaction endothermic

2 physical change. exothermic

3 chemical reaction endothermic

creativ13 [48]3 years ago
4 0

<u>Answer:</u>

1. Chemical reaction   |    Endothermic

2. Physical change     |    Exothermic

3. Chemical reaction  |     Endothermic

<u>Explanation:</u>

• Chemical reaction or Physical change?

A chemical reaction occurs when one or more substances converted into one or more different substances; they are usually irreversible.

A physical change occurs when the state of matter, or any other physical property, of a substance changes; they are usually reversible.

• Endothermic or Exothermic?

An endothermic reaction or change is one in which the system takes in thermal energy.

An exothermic change is where thermal energy is given out by the system.

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What causes the colored bands in the spectra we see?
storchak [24]

Answer:

Each of the different colors has its own wavelength, which reflects and refracts at its own angle, different from all the other colors. When light passes through a prism (a triangular piece of glass), it is reflected and refracted into a continuous band of colors called a spectrum.

Explanation:

4 0
3 years ago
Read 2 more answers
n the textbooks for this course, Cain et al. define Ecology as"the scientific study of interactions between organisms and their
Strike441 [17]

Answer:

a.i and iii are correct

Explanation:

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3 years ago
]• In some parts of the state, country, and world, household electricity is generated by hydroelectric power through the use of
tekilochka [14]

Answer:

Explanation:

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8 0
4 years ago
What is the best way to prevent a tape worm infection?
katen-ka-za [31]
~Hello there!

Your question: What is the best way to prevent a tape worm infection?

Your answer: Thoroughly cook raw meat will be the best way to prevent tapeworm infection.

The answer is option C.

Any questions ^?

Happy Studying!
7 0
4 years ago
Q: Predict and describe some possible effects to your entire food web if the following happened:
klasskru [66]

Answer:

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Explanation:

<h3>If a food source for animals is obsulete i am sure the predators of the animals will have starved to death like how, the Hot blob is affecting the Cassins auklet due to the Less amount of phytoplankton in the oceans. </h3>
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4 years ago
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