Answer:
Air Pressure
Explanation:
Air pressure is the only option here related to weight. And Air Pressure does get lower the higher the airplane goes.
D. homologous chromosomes pair up
B. Steroid hormone
This is because most hormones are steroids, that send long distance signaling throughout your body.
<span>The light-dependent reactions for photosynthesis occur in the chloroplasts of the plant cell.</span>
<span>The correct option is C. On Earth's surface directly above the earthquake's focus.
</span>
<span>The hypocenter, or focus is the point where the earthquake really starts. It's located under the surface in the tectonic plate boundary. </span><span> <span> <span> </span> </span> </span>
The epicenter is the point on the surface of the earth that's directly above the hypocenter.