7. All physical forms of water (solid, liquid, and gas) make up the a. atmosphere.
b. biosphere.
C. hydrosphere.

8. The living portion of the earth is contained within the
a. lithosphere.
b. biosphere.
C. hydrosphere.

9. The correct sequence of layers of the atmosphere from innermost to outermost is
a. troposphere--stratosphere--mesosphe re--thermosphere.
b. mesosphere--stratosphere--thermosph ere--troposphere.
c. thermosphere--stratosphere--mesosph ere--troposphere.

10. Most of Earth's weather occurs in the
a. mesosphere.
b. troposphere.
C. stratosphere.

C. Hydrosphere for 7

B. Biosphere for 8

Explanation: I am not sure about the rest of them.

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.

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

explanation: