Which of the following is an opinion about the ISS? Group of answer choices.

More than 20 countries have helped build and maintain it

It proves that space travel is worth the time and effort

Many scientific experiments are carried out onboard

The Columbia space shuttle disaster caused delays in its construction

In the 1400s, portugal’s economy was based on a. industry b. exports c. finance d. trade

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies? a. it's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun. b. it's an area that doesn't experience any major weather events that could cause mass extinctions. c. it's an area that's an optimal distance from the sun for potentially supporting life. d. it's a region that's unaffected by asteroid or meteor impacts.

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?