Mechanical waves form when a source of energy causes a medium to compress.
a. true
b. false

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem