Answer:After puffing off its outer layers, the star collapses to form a very dense white dwarf. One teaspoon of material from a white dwarf would weigh up to 100 tonnes. Over billions of years, the white dwarf cools and becomes invisible.
Explanation: googel hope it helps
<u>Answer:</u>
The Answer is <em><u>Option D. </u></em>
<em>Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.</em>
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An eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A
<h3>What is an eclipse?</h3>
The term eclipse refers to a situation in which in which one celestial body casts a shadow on another celestial body. In this case, we could have the earth cast its shadow on the earth or the sun as the case may be.
The kinds of eclipse that could occur are;
- Eclipse of the sun
- Eclipse of the moon
This brings us to conclude that; an eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A
Learn more about eclipse:brainly.com/question/4279342
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Transcription is important to genetic information. If there is an error during the transcription process, the DNA copies would not be accurate, causing the proteins to be improperly assembled, or not assembled at all.
