Question

16 multiple choice 4 points several surprising discoveries were made as astronomers began detecting exoplanets. which statement is correct? there are terrestrial planets larger than earth. some exoplanets have extremely elliptical orbits. gas giants can orbit extremely close to their star. all are correct. none are correct.

Explanation:

For question 15: Astronomical surveys and corrected data for detection biases show that Super-Earths (rocky planets larger than Earth but smaller than ice giants) are the most commonly detected and believed most prevalent exoplanet type.
For question 16: All listed observations are confirmed exoplanet discoveries: "hot Jupiters" (gas giants close to stars), exoplanets with highly elliptical orbits, and super-Earths/mini-Neptunes (terrestrial planets larger than Earth) have all been observed.

Answer:

1. B. Super-Earths.
2. D. All are correct.