Answer:
C-14 from fossil had reached itshalf life
Explanation:
For radiactive isotopes (such as Carbon-14), per definition; the semi life or semi disintegration period; is defined as the time for which a certain mass isotope mass disintegrates to half of the atoms that make it up
For Carbon-14, this semi life period is 5730 years , and for the above example, as it is mentioned that we originally had 254 grams of C-14 but we currently have 127 grams (this is, exaclt half of the original mass of 254 grams), this leads us that 5730 years have passed since the original mass and the final mass (that is, one semi life period of C-14)
Answer:agriclture agriculture hope it helps (:
Explanation:
Because one of them dies and another one doesn’t
Answer:
A normal line
Explanation:
"In geometry, a normal is an object such as a line, ray, or vector that is perpendicular to a given object."
Hope this Helps
Cleaning materials
1. Cleaning powders
2. Cleaning liquids
a. Zonrox
b. Muriatic Acid
The complete and correct hierarchy of taxonomic groups from largest to smallest are:
1) Domain
1.1) Archaea 1.2) Bactera 1.3) Eukarya
2) Kingdom
2.1) Animalia 2.2) Plantae 2.3) Fungi 2.4) Protista 2.5) Archaea 2.6) Bacteria
3) Phylum - has 35 phyla
4) Class
5) Order
6) Family
7) Genus
<span>8) Species</span>