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11111nata11111 [884]
3 years ago
13

What is the difference between an atom of silver and anatom of gold?  

Biology
1 answer:
eduard3 years ago
6 0
The right answer is C. I think, a. and d. are obviously not serious. B is not true, because Ag and Au are in the same group in the periodic table and therefore have the same number of electrons in the last level. So, they form ions with the same charge. C is true beacause Ag and Au have different numbers in the periodic table and different amount of protons and neutrons in their nucleuses. 
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4. What is the scale used to determine the strength of a HURRICANE?
musickatia [10]

Answer:

Saffir-Simpson Hurricane scale

Hurricane winds are measured using the Saffir-Simpson Hurricane scale. This scale was first developed in the late 1960s and was further developed in the early 1970s. It uses measurements in pressure, wind speed, storm surge and damage potential to put hurricanes into 5 categories.

Explanation:

mark me brainlest

3 0
4 years ago
Which of the following is not a technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural ga
stich3 [128]

<u>Answer</u>: c. Natural gas.

<u>Explanation</u>:

  • <em>Natural gas</em> is a fossil fuel and thus a<em> non-renewable resource.</em>
  • Natural gas is widely used for the purpose of heating, cooking, and generation of electricity.
  • The process of formation of natural gas takes place over millions of years from decomposing plant and animal material subjected to heat and pressure.

<em>Thus, natural gas cannot be used for the conservation of resources.</em>


7 0
3 years ago
Read 2 more answers
Which of the following conclusions can be drawn from this graph?
azamat

Answer:

A

Explanation:

We can't see the graph, but I think I found the worksheet online, and so the graph is attached.

The answer cannot be B, as we are looking at a graph of pH, not temperatures. Therefore, we cannot draw this conclusion

The answer cannot be C, as pepsin is a digestive enzyme, and it works best at pH of around 2.

The answer cannot be D, because we can see that arginase and salivary amylase work at pH 7 and above, which is not acidic

The answer is A, because the lines for each enzyme are different, each peaking at a different pH. These peaks represent their optimum temperatures, and the hills of the peak represent the range in which they can work

3 0
4 years ago
Unlike red blood cells, white blood cells
marshall27 [118]
Unlike red blood cells, white blood cells can live for many years.
7 0
4 years ago
Emir is taking a premed class where they need to study all of the structures of the body, including the nervous system, respirat
jonny [76]
Emir is most probably taking a class on human anatomy. Human anatomy involves all the structures in the composition of the human body. Human anatomy can be studied either by systems (i.e. cardiovascular system, respiratory system, etc.) or by regions (i.e. thoracic anatomy, abdominal anatomy, pelvic anatomy, head and neck anatomy, etc.) depending on the course.
3 0
4 years ago
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