20 pauline is having a party and wants to ensure that all of her friends receive an invitation in a timely…

20 pauline is having a party and wants to ensure that all of her friends receive an invitation in a timely manner. she decides to post her invitation on various forms of social media. what could be a potential drawback to paulines choice of notification? a everyone receives the invitation at the same time. b those outside her circle of friends could receive access. c potential guests have the option to rsvp. d she can quickly correct errors in the invitation. 21 elizabeth was looking at the pattern formed when the 100 closest stars were classified onto a hertzsprung - russell (h - r) diagram. she wondered why most of the stars were clustered onto a diagonal line from the high temperature and luminosity corner to the low temperature and luminosity corner. which is the most accurate explanation for this clustering of stars on the h - r diagram? a most stars are main sequence stars, which fuse hydrogen for energy and produce an amount of light positively correlated to the temperature of the star. b most stars are red giant stars, which fuse iron for energy and produce an exact amount of light positively correlated to the temperature of the star. c most stars are neutron stars, which fuse helium for energy and produce an exact amount of light positively correlated to the temperature of the star. d most stars are supernova stars, which fuse iron for energy and produce an exact amount of light positively correlated to the temperature of the star.

20 pauline is having a party and wants to ensure that all of her friends receive an invitation in a timely manner. she decides to post her invitation on various forms of social media. what could be a potential drawback to paulines choice of notification? a everyone receives the invitation at the same time. b those outside her circle of friends could receive access. c potential guests have the option to rsvp. d she can quickly correct errors in the invitation. 21 elizabeth was looking at the pattern formed when the 100 closest stars were classified onto a hertzsprung - russell (h - r) diagram. she wondered why most of the stars were clustered onto a diagonal line from the high temperature and luminosity corner to the low temperature and luminosity corner. which is the most accurate explanation for this clustering of stars on the h - r diagram? a most stars are main sequence stars, which fuse hydrogen for energy and produce an amount of light positively correlated to the temperature of the star. b most stars are red giant stars, which fuse iron for energy and produce an exact amount of light positively correlated to the temperature of the star. c most stars are neutron stars, which fuse helium for energy and produce an exact amount of light positively correlated to the temperature of the star. d most stars are supernova stars, which fuse iron for energy and produce an exact amount of light positively correlated to the temperature of the star.

Answer

Question 20

Brief Explanations:

When posting on social - media, privacy can be an issue. Non - friends may access the invitation due to social - media's public nature in some cases. Options A, C, and D are advantages.

Answer:

B. Those outside her circle of friends could receive access.

Question 21

Brief Explanations:

Most stars are main - sequence stars. They fuse hydrogen for energy and have a relationship between temperature and luminosity that causes them to cluster along the main - sequence diagonal on the HR diagram. Red giants, neutron stars, and supernovae are not the most common type of stars and do not explain the clustering in the way described.

Answer:

A. Most stars are main sequence stars, which fuse hydrogen for energy and produce an amount of light positively correlated to the temperature of the star.