Life in the Universe 4th Edition By Jeffrey O. Bennett – Test Bank

Life in the Universe, 4e (Bennett)
Chapter 3 The Universal Context of Life

1) In the context of life in the universe, which of the following discoveries of astronomy suggests that enormous numbers of habitable worlds may exist in the universe?
A) the laws of physics are the same everywhere
B) the universe is very old

C) the universe is very large
D) the building blocks of life are common Answer: C

2) In the context of life in the universe, which of the following discoveries of astronomy suggests that there has been plenty of time for life to have appeared and evolved elsewhere?
A) the universe is very large
B) the universe is very old

C) the laws of physics are the same everywhere D) The building blocks of life are common Answer: B

3) In the context of life in the universe, which of the following discoveries of astronomy suggests that extraterrestrial life may be constructed in a similar fashion to life on Earth?
A) the universe is very large
B) the universe is very old

C) the laws of physics are the same everywhere
D) the chemical elements that make up life on Earth are common Answer: D

4) In the context of life in the universe, which of the following discoveries of astronomy suggests that the processes that formed life on Earth could have occurred elsewhere?
A) the universe is very old
B) the laws of physics are the same everywhere

C) the universe is very large
D) the chemical elements that make up life on Earth are common Answer: B

5) Which of the following places the structures in our own part of the universe in order of increasing (smallest to largest) scale?
A) Solar System, Local Group, Milky Way Galaxy, Local Supercluster
B) Local Supercluster, Local Group, Milky Way Galaxy, Solar System

C) Solar System, Milky Way Galaxy, Local Supercluster, Local Group D) Solar System, Milky Way Galaxy, Local Group, Local Supercluster Answer: D

1
Copyright © 2017 Pearson Education, Inc.

6) Approximately how many stars are there in the Milky Way galaxy? A) a few hundred million
B) a few hundred thousand
C) more than a hundred billion

D) a trillion or more Answer: C

7) Huge collections of stars in space containing anywhere form a few hundred million to more than a trillion stars are referred to as
A) island universes
B) galaxy clusters

C) star clusters D) galaxies Answer: A

8) The Local Group is an example of a A) galaxy cluster
B) galaxy
C) supercluster

D) planetary system Answer: D

9) Which of the following words best describes the sum total of all matter and energy that exists? A) supercluster
B) universe
C) multiverse

D) macrocosm Answer: B

10) The light-year is defined to be the
A) time it takes light to travel from the Sun to the Earth
B) time it takes for light to travel from the nearest star to the Earth C) distance light travels in one year in space
D) average distance between the Earth and the nearest star Answer: C