I don’t understand Spanish so I can’t help u
Answer:
F stands for feather R stands for red and W stands for white.
Explanation:
The instrument that records and measures the seismic waves during an earthquake is a seismograph. It uses the vibration propagated by from the earthquake source's energy. It mainly uses a suspended pen that records the motion between itself and the paper film.
Answer:
Air is essential for all organisms
Cuz of the refraction of light