Frogs do have lungs but they are small and rarely used, frogs mostly take in moisture through the skin in process called cutaneous gas exchange.
<h3>I think it's answer (c) I hope you are satisfied with my answer </h3>
They are both the building blocks of life
Answer:
water is a product
Explanation:
hydrogen and oxygen are the reactants combining together the make the final product of Water.
Answer:
I don't remember much, but I'll try my best.
Explanation:
Over time, sediments rocks pile up to form horizontal layers of sedimentary rocks. The bottom layer of rock forms first, which means it's the oldest. This would mean that while you can't be sure when each layer of sediments formed, each layer is younger than the one below it.
