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Colt1911 [192]
3 years ago
14

What two substances do geologists use in radiocarbon dating

Biology
1 answer:
Elan Coil [88]3 years ago
5 0

The two substances that scientists use are

carbon-14 and carbon-12

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Plz help guys middle school sucks, 59 points if you can answer!!
alexdok [17]

A catalyst increase a chemical reaction, therefore making the answer B. Promotes a chemical reaction.

Hope I could help! :)

5 0
3 years ago
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How is the carbon cycle related to sedimentary rocks?
Verdich [7]

Answer: Heat and pressure compress the mud and carbon over millions of years, forming sedimentary rock such as shale. ... The heated rock recombines into silicate minerals, releasing carbon dioxide. When volcanoes erupt, they vent the gas to the atmosphere and cover the land with fresh silicate rock to begin the cycle again.

Explanation:

3 0
3 years ago
A. a covering called a membrane that surrounds the cell and controls what information and materials enter and leave it. B. an in
yuradex [85]

Question is incomplete. Complete question is as follows:

All cells have

A. a covering called a plasma membrane that surrounds the cell and controls what information and materials enter and leave it.

B. An internal fluid that gives shape to the cell and supports the other things within it .

C. A central zone or nucleus that contains the cell's genes.

D. All of the above

Answer:

D. All of the above

Explanation:

  • All cells have a protective covering called plasma membrane. It allows the entry and exit of selective materials. Some cells can have an additional layer outside it which is called cell wall. For example, plant cells.
  • All cells have an internal fluid where the components of the cell float. It is called cytoplasm or protoplasm. It maintains the shape of the cell and also provides a structure to it.
  • All cells also have a zone where the genetic material is present. The genetic material is ultimately responsible for keeping the cell alive and forming various proteins. In prokaryotic cell it is present just in a zone in cytoplasm. In eukaryotes it is present inside an organelle called nucleus.
  • Hence, all the above things are present in each cell.
3 0
3 years ago
Farmers selling some of their soybeans in storage because they anticipate a lower price of soybeans in the near future would cau
Fantom [35]

Farmers selling some of their soybeans in storage would cause a rightward shift in the supply of soybean.

<h3>What is the law of demand?</h3>

The law of demand is well known in economy and indicates that over-demand will increase the prices of a given product.

This law can be understood as a higher is the demand, then higher will be the price of the product demanded.

In conclusion, farmers selling some of their soybeans in storage would cause a rightward shift in the supply of soybean.

Learn more about the law of demand here:

brainly.com/question/24500422

#SPJ12

6 0
1 year ago
The graph shows the rates of malignant melanoma for the years 1973–2004.
Genrish500 [490]

Melanoma is a type of the skin cancer which is the most serious. A melanoma can spread and put the person at more risk. The data shown in the graph regarding the skin cancer between the years 1973-2004 shows an increase in melanoma cases in both men and women. However, this increase occurred at much more faster rate in men than in women according to the graph.

Hence, the answer is 'Skin cancer increased at a faster rate in men than in women'.

7 0
3 years ago
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