Answer:
A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. Objects that are fixed relative to Earth – such as a building, a tree, or a sign - make good reference points.
Explanation:
hope this helps
Answer:
It's the pattern of lines that was the recird of an earthquake's seismic waves produced by a seismograph. What pattern do seismographic data reveal? It shows where earthquakes occur around the world. Geologists will make maps out of this data and find out the most earhquakes occur along plate boundaries.
Explanation:
The plant diversity decrease making that plant existence extinct
A Beaker is a laboratory tool used to measure exact measurements of water
