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galben [10]
3 years ago
12

Helpppppppp

Biology
1 answer:
andre [41]3 years ago
7 0

Dendrochronology, or tree-ring dating, provides absolute dates in two different ways: directly, and by calibrating radiocarbon results. Cross-dating determines the age of undated wood by directly matching ring patterns with trees of known age.

Hope this helps ^^

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The symptoms of a serious heat emergency which will require immediate transport are:_________
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The symptoms of a serious heat emergency which will require immediate transport are<u> a flushed face, a high temperature  and hot and dry skin.</u>

Alterations in mental status may indicate heat stroke and necessitate prompt medical intervention. Cooling comes first when treating extreme heat illness.

There are some symptoms:

  • A flushed face
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Heat exhaustion is a common medical condition caused as a result of exposure to heated atmosphere resulting in body getting overheated

To learn more about  symptoms here

brainly.com/question/1760558

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Sea grass grow on the ocean floor in shallow areas runoff from the land into the ocean can cause the waters to become cloudy. cl
guajiro [1.7K]

The correct answer is - C. light.

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I need help please &amp; show work??
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Answer:

Whether or not a given isotope is radioactive is a characteristic of that particular isotope. Some isotopes are stable indefinitely, while others are radioactive and decay through a characteristic form of emission. As time passes, less and less of the radioactive isotope will be present, and the level of radioactivity decreases. An interesting and useful aspect of radioactive decay is half-life, which is the amount of time it takes for one-half of a radioactive isotope to decay. The half-life of a specific radioactive isotope is constant; it is unaffected by coTnditions and is independent of the initial amount of that isotope.

Consider the following example. Suppose we have 100.0 g of tritium (a radioactive isotope of hydrogen). It has a half-life of 12.3 y. After 12.3 y, half of the sample will have decayed from hydrogen-3 to helium-3 by emitting a beta particle, so that only 50.0 g of the original tritium remains. After another 12.3 y—making a total of 24.6 y—another half of the remaining tritium will have decayed, leaving 25.0 g of tritium. After another 12.3 y—now a total of 36.9 y—another half of the remaining tritium will have decayed, leaving 12.5 g. This sequence of events is illustrated in Figure 15.1 “Radioactive Decay”.

Explanation:

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The following diagrams show four stages of a cell dividing by mitosis. *
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