Answer:
no longer used by species.
is answer
If an astronaut has a mass of 60 kilograms, then she weighs
-- about 588.4 newtons (132.3 pounds) on Earth, and
-- about 97.4 newtons (21.9 pounds) on the Moon.
Her mass doesn't change no matter where she is, because
mass doesn't depend on the local gravity.
True. Everyone's vote in the election process counts!
Use the drop-down menus and what you have learned about potassium-argon dating to complete the sentences.
Radioactive dating can be compared to an hourglass, with the
✔ unstable
elements on the top.
Scientists compare
✔ parent and daughter elements
in the rock to determine its age.
Potassium-argon dating is ideal for dating
✔ igneous
and
✔ ancient
rock.
