Answer:
The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. ... After a star uses up all the hydrogen in its core, it leaves the main sequence and moves towards the red giant branch.
Answer:
55 degrees as an acute angle
Explanation:
Ewaste is a problem because it contains many hazardous chemicals like mercury, lead and cadmium which could seep in to the soil and eventually to the groundwater. This would lead to contamination of the drinking water. The most important thing to remember would be to separate this type of waste with the others. It would be better if you sell it or give it for reuse. Also, you can send it to a recycler that knows what to do with these wastes.
Mitochondrion since it is the power house of a cell required for the production of ATP.