Answer:
hey
Explanation:
i think so in this link u can find the answer i cant write the whole its quite long
https://www.syvum.com/cgi/online/fillin.cgi/exam/regents/living_environment/january_2016.tdf?4
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.
A wave will travel only as long as it has energy to carry. The energy makes a wave travel and it will stop traveling as soon as the energy is dissipated.
Answer:
Developmental science is an interdisciplinary scientific field that synthesizes perspectives from biology, psychology, and sociology in order to understand behavioral and psychological aspects of human development.
<u>Basalt</u>
<em> </em><em>Formation</em> -basalt is (mineral) a hard igneous rock of varied mineral content formed when lava reaches the Earth's surface near an active volcano
<em> </em><em>Texture</em>- is fine grained so the individual minerals are not visible
<em> </em><em>Colour</em>- basalt being dark
<u>Rhyolite</u>
<em> Formation</em> -Rhyolite is a very fine-grained to glassy extrusive igneous rock. Formed in continental plates have volcanic eruptions.
<em> Texture</em>- very small than grains and are difficult to observe without using a hand lens.
<em> </em><em>Colour</em>- light in colour whether pink or grey
<u>Andesite</u>
<em> </em><u><em> </em></u><em>Formation</em>- Andesite is a fine-grained igneous rock that forms when the magma is rises up onto the surface and crystallized quickly
<em> </em><em>Texture</em>- higher than basalt and lower than rhyolite
<em> </em><em>Colour</em><em> -</em>- color is pale due to silica content
