The trachea is a tube that carries air inside the lungs.
True, They contain old stars and posses little gas or dust
Answer:

cubic metre or 1e-9
Explanation:
•By division. Number of cubic millimetre divided(/) by 1000000000, equal(=): Number of cubic metre.
•By multiplication. 83 mm3(s) * 1.0E-9 = 8.3E-8 m3(s)
Answer:
so its easier to understand for the reader
Explanation:
Answer:
The moon is like a mirror. It reflects light produced by the Sun
Explanation: