Answer:
i stongly belive that "Lungs of the Earth" refers to the trees
Explanation: because trees act just like lungs
1) The law of orbits. This is when all planets move in elliptical orbits, with the sun at once focus.
2) The law of areas. A line that connects a planet to the sun sweeps out equal areas in equal times.
3) The law of periods. The square of the period of any planet is proportional to the cube of semimajor axis of its orbit.
These laws were derived for orbits around the sun, but they apply to satellite orbits also. I hope this helps! ~Mia
Answer:
The correct answer is A. Cells are the basic unit of life.
Heat, light, sound and fire may have been involved when the Bunsen burner was lit with the spark from the Van de Graaff generator. Bunsen burner is a common device in the lab.
<h3>What is a Bunsen burner?</h3>
Bunsen burner is a laboratory device (gas burner) that generates a single open gas flame.
The gas most commonly used in Bunsen burner is generally natural gas, i.e., methane gas.
This device (Bunsen burner) can be used to generate a heat source during a lab experiment.
Learn more about the Bunsen burner here:
brainly.com/question/10281181
