A Spaceship Is Traveling to the Moon

question 57

Multiple Choice

A spaceship is traveling to the Moon. At what point is it beyond the pull of Earth's gravity?

• A) when it is closer to the Moon than it is to Earth
• B) when it is half-way there
• C) when it gets above the atmosphere
• D) It is never beyond the pull of Earth's gravity.

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Definitions:

Cell Body

The spherical part of a neuron that contains the nucleus and connects to the dendrites, which bring information to the neuron, and the axon, which sends information to other neurons.

Chromosomes

Threadlike structures made of DNA molecules that contain the genes and are located in the nucleus of most living cells, playing a key role in inheritance and determining the characteristics of an organism.

Axon

A part of a neuron that transmits electrical impulses away from the neuron's cell body to other neurons or muscles.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information throughout the body.