A comet. It’s a smaller celestial body that’s composed of mainly ice and dust.
Answer:
The World Ocean
Explanation:
The World Ocean is the largest existing ecosystem on our planet. Covering over 71% of the Earth's surface, it's a source of livelihood for over 3 billion people.
<h2>
<em><u>^Hope this helps, Hazel^</u></em></h2>
Answer:
Spirometry is a type of pulmonary function test (PFT), a noninvasive procedure that provides important information about how well the lungs are working. More specifically, it reveals how much air is moving through the lungs and how quickly as you breathe through a tube.
Hope this helps!
Industrial waste! This is because the waste is in direct contact with the soil in the form of chemicals or even heat!