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Triss [41]
1 year ago
15

Explain what scientists might be able to learn about the seawater that existed millions of years ago by studying rocks that came

into contact with seawater at that time in the past . Use evidence from the text to support your inference.
Biology
1 answer:
oee [108]1 year ago
7 0

Answer:

About composition of water and organisms that lives there.

Explanation:

scientists might be able to learn about the composition of seawater that was present millions of years ago if we study those stones that comes in contact to that ancient seawater because the traces of particles still present on it. This study provides valuable information about ancient times of earth and its natural resources. These rocks also provides animals that were present in that sea water at that time.

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What is the major sink reservoirs for the nitrogen cycle?
Rudiy27

All of these components are reservoirs of carbon. The cycle is usually discussed as four main reservoirs of carbon interconnected by pathways of exchange. The reservoirs are the atmosphere, terrestrial biosphere (usually includes freshwater systems), oceans, and sediments (includes fossil fuels).

8 0
1 year ago
Assume that there are 8 rats in the cage: 6 trained and 2 untrained. A rat is removed from the cage and it is noted whether or n
mojhsa [17]

Answer:

1. Option A

2. 56

Explanation:

1.

Option A

Option A is not a valid answer for this question as it is given that out of eight rats only two rats are untrained. Thus, an output which shows more that two untrained rats i.s UUTTU is a wrong answer

2.

8C_5 = \frac{8!}{5!(8-5)!} \\8C_5 = \frac{8*7*6*5!}{5! * 3!} \\8C_5 = \frac{8*7*6}{3*2*1} \\8C_5 = 56

Thus , there are 56 outcomes possible for this experiment

6 0
1 year ago
Which describes the basis of an immunoassay
adell [148]
The answer to this given question is the letter "C". The basis of immunoassay is the unknown amount of drug in a sample competes with the known amount os fluorescently labeled drug for binding to an antibody to that drug.
6 0
2 years ago
______________ is the process of translating a message received into understandable language or symbols.
MrRissso [65]

Answer:

Option B

Explanation:

The process of converting a message into a form where it can be transmitted as signals from the sender to the receiver is called as encoding. However, the process of the reconverting the encoded message into intelligible forms so that a receiver could understand the message is called as decoding. However, the entire process of encoding and decoding is known as communication.  

For example -  

In order to decode a sound signals, analogue from digital are retrieved.  

Hence, option B is correct

6 0
2 years ago
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Sean enjoys studying the stars. He used a photometry tool to calculate several stars' apparent magnitudes (how bright a star loo
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Answer: B  

Explanation:  A star's apparent magnitude is not directly related to its distance from Earth.

3 0
2 years ago
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