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.
The slope formula is y = mx + b, where m is the slope and b is the y-intercept. So, the answer to this question would be -3.
Answer: "More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities. As climate change worsens, dangerous weather events are becoming more frequent or severe."
Explanation:
"What is the biggest threat of global warming?
The threats include harm or death from increasingly frequent extreme weather events such as heat waves, storms and floods, as well as the disruption of food systems, the spread of diseases from animal populations, food- and water-borne illnesses, related mental health issues and more."
Hope this helps :)
Answer:
Land use: agricultural land: 79.4% (2011 est.) arable land: 9.9% (2011 est.) / permanent crops: 0.3% (2011 est.) / permanent pasture: 69.2% (2011 est.)
Explanation:
hope dis help
Wind, water, and solar energy
