Given the age of the meteorite is 4.5 billion years old with 78 atoms of lead-206 the answer should be B. 156. The half-life of uranium-238 in order to decay into lead-206 is 4.46 billion years, which means that the original number of atoms is 156.
The correct answer would be 4 I believe
The correct answer to question is Nucleic Acids, (DNA) AND (RNA).
hope this helps let me know.
Capillaries are one cell thick and so this makes them very thin. capillaries are also arranged in networks known as capillary beds, and thus multiple capillaries are spread over a large area.
I think the correct answers are options C and D. Examples of science are a farmer consulting a weather almanac to decide the best time to plant a crop and a<span> drug manufacturer testing a drug to determine its safety. These things require the knowledge on science and its related subjects.</span>
