Element? I'm quite not sure but...Hope this helps!
The first option is correct. have fun in earth science i love astronomy!! :)
Answer:
the 3rd one (0.01 cm the one selected already)
Explanation:
copper wire isn't excessively big, and it wraps around the pencil because its malleable. I think that the most accurate would be 0.01 cm
Concave is not a type of mechanical wave because it doesn’t need a medium for propagation.
