A sound wave is A wave of compression and rarefraction .
Answer:
ISOTOPES
the same number of protons
but difference numbers of neutrons
IONS
because they have lost or gained one or more electrons
Answer:
The answer is B. Vacuole
Explanation:
Assuming the image is something I've already seen, & with the question being familiar, I do remember the answer being Vacuole.
Answer:
I think so this is the answer
The seasons are caused as the Earth, tilted on its axis, travels in a loop around the Sun each year. Summer happens in the hemisphere tilted towards the Sun, and winter happens in the hemisphere tilted away from the Sun. ... The poles remain cool because they are never tilted in a direct path of sunlight.
