Check out this website http://science.jrank.org/pages/3421/Hummingbirds-Biology-hummingbirds.html
Iron, oxygen and water react with the iron creating a substance known to us as rust.
Hope this helps.
The Earth will perform 366.25 rotations per revolution about the Sun.
<h3>What is Revolution?</h3>
This is defined as the motion around the Sun along its orbit which is common with planets such as the Earth.
The Earth rotates 366.25 times around the Sun and which is equivalent to a calendar year which is used for time keeping.
Read more about Revolution here brainly.com/question/16533738
