Which question cannot be answered by science? (4 points) a
Why do rainbows appear after rain storms?

b
Which plants grow in the desert?

c
Why should endangered animals be protected?

d
What is the hardest element on Earth?

i think one of them cannot be answred by science

C

Explanation:

The option C question has not a specific answer related to pure science.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.