Briefly explain why stars that formed early in the history of the galaxy contain a smaller proportion of heavy elements than stars that formed more recently
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The star-gas-star cycle gradually enriches the interstellar medium with heavy elements. Therefore, stars that formed early in the history of the galaxy were formed before much enrichment from supernova events could take place. Stars that formed more recently were formed from material that had been enriched by the many previous generations of stars.
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If an object remains at rest, then the sum of both the external torques and the external forces exerted on the object must be zero
A) True B) False
Starch is a polymer that consists of long chains of ______________ units
a. lactose b. fructose c. maltose d. glucose
If the temperature and number of molecules remain constant for a gas, a pressure increase results in a volume ______________
Fill in the blank(s) with correct word
which of the following stars lives the longest life?
What will be an ideal response?