What do we mean when we say that the universe is expanding?

a: on average, distances between the galaxies are increasing.

b: average distances are increasing between stars within galaxies.

c: individual galaxies are gradually growing in size.

d: everything in the universe is gradually growing in size.

e: the statement is not meant to be literal; rather, it means that our knowledge of the universe is growing

Aresearcher proposes to conduct a study at a foreign site. the research has been determined to be exempt from the federal regulations by institutional policy. according to federal regulations, is review required at the foreign site? if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted but still require review at the u. s. site by the institution’s irb. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted, but still require review by the institutional official at the local site.

Gettysburg address question what do you notice about the length of this address? why do you think lincoln made it so short?

On average, being married has a(n) effect on happiness.