Option c would be the most befitting one.
The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
Answer:
There are an estimated over 10,000 bird species that exist in our world
Explanation:
The most notable types include humming birds, which have incredibly fast heart beats of up to 1,260 beats per minute.
There are also a group of birds that are flightless and cannot fly, which include Ostriches, which are also the tallest and heaviest living birds. In fact an ostrich is the closest ancestor to a Tyrannosaurus Rex.
Overall, there are many amazing birds out there! Hope this helped a little!
The independent variable is the thing 1 thing you change the dependent variable is the response like the answer. and idk sorry❤-meli
