Question

What prevents gravity from pulling you through the ground to the center of the Earth? Choose the best answer.
A. The density of matter is too great
B. The positive nuclei of your body’s atoms repel the positive nuclei of the atoms on the ground.
C. the density of the ground is greater than that of your body
D. atoms are bound together by chemical bonds
E. electrons on the ground surface and the surface of your feet repel one another

Answer 1

Hint: Gravity is the natural phenomenon by which all things are attracted to one another. On earth, gravity gives the quantity of weight to physical objects. We need to keep in mind that this gravity is a force between physical objects and proceed accordingly.

Complete answer:
Everything in our surroundings is made up of small particles of matter called atoms, these atoms have a positively charged nucleus and negatively charged electrons revolving around the said nucleus. Atoms make up nearly everything. That said, the human body is also made up of atoms. The atoms in our body and the ground contain negatively charged electrons.

When our body comes in close contact with the ground, the negatively charged electrons on the outer surface repel that on the surface of the ground. The atoms on the surface of the ground are locked in a particular position. Hence, this repulsive force between the negatively charged electrons in the ground and that in from under your feet repel one another.

Therefore, the right answer is option E.

Note: The right comprehension of the given question and options is crucial. It is also important to have proper knowledge about the atoms in one’s body and the surface of the earth. Atom structure realization and remembering is also very important. The part where the electrons move around freely is crucial and that helps in us not penetrating through the ground.