Question

directions: for the following questions, choose the best answer or respond in complete sentences.

1. part a: which statement best identifies one of the central ideas of the text?

a the earths natural elements and distance from the sun allow humans and animals to live successfully on earth.
b scientists observations of earth show that the planet may be habitable for humans in the future.
c the earths placement in the universe guarantees that humans will always be able to live comfortably there.
d scientists understanding of earths makeup and movements is still limited, but it is becoming more advanced through satellites.

1. part b: which detail from the text best supports the answer to part a?

a \earth is the only planet known to have large amounts of liquid water. liquid water is essential for life. earth is the only planet where life is known to exist.\ (paragraph 3)
b \earth has seasons because its axis is tilted. thus, the suns rays hit different parts of the planet more directly depending on the time of year.\ (paragraph 9)
c \earths parts once were seen as largely separate from each other. but now they are viewed together as the earth system.\ (paragraph 16)
d
asa studies earth to learn about how the planet changes. earths parts — land, air, water and life — are always changing. some of the changes are natural and some are caused by humans.\ (paragraph 18)

1. which of the following describes the authors purpose for referencing \goldilocks and the three bears\ in paragraph 2?

a to help students understand that earth needs certain conditions to be \just right\ for life to exist
b to teach students the origins of the fairytale and how it can be applied to real life
c to emphasize how impossible it is for a \goldilocks planet\ like earth to exist
d to show students what humans need to live comfortably in their daily live

Explanation:

1. For Part A, the Earth's natural elements (like water) and its distance from the sun create conditions for life. Option A best captures this central idea.
2. For Part B, the fact that Earth has large - amounts of liquid water which is essential for life (Option A) supports the idea that Earth's natural elements allow life to exist.
3. For Part C, the reference to "Goldilocks and the Three Bears" is to illustrate that Earth needs certain "just right" conditions for life, as in the story where Goldilocks finds things that are just right for her.

Answer:

1. A. The Earth's natural elements and distance from the sun allow humans and animals to live successfully on Earth.
2. A. "Earth is the only planet known to have large amounts of liquid water. Liquid water is essential for life. Earth is the only planet where life is known to exist." (Paragraph 3)
3. A. to help students understand that Earth needs certain conditions to be "just right" for life to exist