Answer:
D) the steady, clocklike decay of certain radioactive isotopes over time.
Explanation:
Geologists use radiometric dating to estimate how long ago rocks formed, and to infer the ages of fossils contained within those rocks.
For example, when rocks are formed, such as igneous rocks (formed when molten rocks cools), certain radioactive atoms are trapped inside the rocks during this formation process. Then these radioactive atoms decay over time.
The age of the rock can be estimated by comparing the occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
From the options;
A) this is about the formation of the radioactive molecules and not about radiometric dating
B) this is radiocarbon dating (cabon dating/carbon-14 dating)
C) the <em>assumption </em>is wrong since the radioactive isotopes decays not accumulate.
D) the corect option as I explained earlier.
Answer:
2. Sediment B quartz sand forms when rocks first break apart
Explanation:
- Limestone is a carbonate rock that sedimentary in origin that is often made up of skeletal body parts of freshwater organisms such as corals, and mollusks, etc.
- Major material of mineral calcite. That are different crystal forms of calcium carbonate CaCO3. It's colorless or white, also gray, yellow, green. And chemically dissolves to form an acid.
- Calcite may form in substance to the response of organisms which result in sulfate dependent and when methane is oxidized. They have existed on earth primarily in forms of calcium carbonate in marine waters low magnesium calcite.
Population means the number of people in a geographic area. It can also be used for subgroups of people or animals.
Answer:
D) Manifest Destiny
Explanation:
Manifest Destiny -
In the 19th century , it was a belief that , the settlers were destined to expand in the North American region .
The three themes were as follows -
1. Duty to accomplish an irresistible destiny .
2. The special virtues of the people of America and American institutions .
3. To remake and redeem the west in an image of the agrarian American .
Hence , the correct answer is D) Manifest Destiny .
Technology and connectivity have helped to improve climate change by improving techniques for using natural resources, such as solar and wind energy.
<h3 /><h3>How does technology help climate change?</h3>
The internet of things, for example, is a technology that helps, for example, in reducing carbon, promoting smart agriculture and new ways of using sustainable energy.
Therefore, climate technologies help to promote sustainability by using renewable energy and reducing the greenhouse effect on the planet, helping to protect the environment.
Find out more about climate technologies here:
brainly.com/question/24488606
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