D......................................................................................................................................................
Answer:
Amber is the fossilized resin from ancient forests.
Explanation:
Amber is not produced from tree sap, but rather from plant resin. This aromatic resin can drip from and ooze down trees, as well as fill internal fissures, trapping debris such as seeds, leaves, feathers and insects. so your answer is B
3,000,000,00 is prolly estimated
Answer:
The correct answer is "uranium-238".
Explanation:
Uranium-238, is the most abundant isotope of the element uranium. Uranium-238 has not enough nuclear force to balance electrostatic forces between protons, and as a result, it is a radioactive isotope and its losing energy because of the spontaneous breakdown of its atomic nucleus. Uranium-238 has a half-life of 4.5 billion years and is used as fuel in nuclear reactors as well as for dating purposes.
Timbre
Timbre is the psychological dimension of hearing that describes the difference.
Timbre is the quality of tone that differentiates two sounds in the same frequency or musical note. Timbre differentiates various types of sound production, such as string instruments, musical instruments, and percussion instruments. Timbre also allows listeners to distinguish different instruments within the same group.
