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lara [203]
3 years ago
12

Which provides the most evidence about the age of Earth?

Biology
2 answers:
pychu [463]3 years ago
6 0
I think is A or D

............................. a
lord [1]3 years ago
6 0
A is the correct answer because layers create over time
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How do bees help plants in reproduction?
Misha Larkins [42]
Its A hope this helped 
8 0
3 years ago
Read 2 more answers
Suppose that you were a researcher trying to understand how rising levels of atmospheric CO2 might affect ragweed plants, and th
bija089 [108]

Prediction a - Plants grown at higher CO2 levels will produce more pollen.

Hypothesis 2 b - CO2 levels affect the concentration of protein allergens in ragweed pollen.

Prediction c - Plants grown at higher CO2 levels will produce higher concentrations of allergens.

Researchers developed two hypotheses to explain why ragweed allergies appear to be getting worse as the global climate changes.• CO2 levels affect ragweed pollen production, with plants that grow at higher CO2 levels producing more pollen.

CO2 levels affect the concentration of allergens (the proteins that actually trigger allergic reactions) found in ragweed pollen, with plants that grow at higher CO2 levels characterized by pollen with higher concentrations of allergens.

The image is attached below showing the flow chart with answers.

Learn more about hypotheses at

brainly.com/question/11555274

#SPJ4

5 0
2 years ago
A feral cat needs to eat two mice a day to survive. A mouse needs to eat 5 seeds a day to survive. How many seeds are required t
Mars2501 [29]

Answer:

70 seeds

Explanation

5 is the food for a mouse  (day)x2 mice for cat=10. 10x7(week)=70 seeds

hope this helps!

3 0
3 years ago
Explain how Co2 is able to control fires?<br><img src="https://tex.z-dn.net/?f=co2" id="TexFormula1" title="co2" alt="co2" align
Alborosie

Carbon dioxide is heavier than oxygen gas. It therefore displaces the oxygen gas around a flame. Without oxygen, the combustion reaction will stop and the flame will be put out.

Further Explanation:

In order for a combustion reaction to happen, three components must be present: fuel, oxygen, and heat to cause ignition. When one of these three is removed, the combustion reaction will stop.

CO2 fire extinguishers use the difference in mass of the CO2 and oxygen molecules to stop the fire. Since CO2 is heavier, it will displace any oxygen molecules that are around the flame. When this happens, the supply of the oxygen will be limited or cut-off and the fire will eventually be put out because of the lack of oxygen. This ability to displace oxygen is also what makes using CO2 as fire extinguisher quite dangerous for the user since it pushes away the oxygen that is needed for respiration.

Other ways to put out fire include spraying liquids that absorb the heat to avoid spreading the fire further or spraying substances that coat the fuel (flammable materials) to avoid contact with oxygen gas which can lead to further combustion.

Learn More

  1. Learn more about combustion brainly.com/question/9641392
  2. Learn more about fire extinguisher brainly.com/question/3905469
  3. Learn more about respiration brainly.com/question/1448925

Keywords: carbon dioxide, fire, combustion

8 0
4 years ago
Adaptations often give organisms a competetive edge.<br> a. True<br> b. False
polet [3.4K]
Definitely true! very much a component of the natural selection, or more commonly know as 'survival of the fittest', theory.
6 0
4 years ago
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