Answer:
covalent, which repel water molecules
they contain ions, which make the entire molecule hydrophilic
they are less dense than liquid water, so they float on the surface
most of their bonds are nonpolar covalent, so they are not attracted to water
Your answer
Explanation:
Plants and animals provide food for humans. Plants cycle the air for humans too.
Answer:
atoms
Explanation:
Atoms are the building blocks of elements.
Halons and cfc’s both destroy ozone layer in the stratosphere.
- Chemicals with carbon, chlorine, and fluorine atoms are known as chlorofluorocarbons (CFCs), and they are neither poisonous nor combustible.
- They are employed as solvents, refrigerants, blowing agents for foams and packaging materials, and in the production of aerosol sprays.
- Halons, hydrochlorofluorocarbons, and chlorofluorocarbons all damage the ozone layer, which protects the planet from damaging ultraviolet (UV-B) rays from the sun.
- Additionally warming the earth's lower atmosphere, CFCs and HCFCs alter the climate on a global scale.
- Life on earth is made possible by the stratospheric ozone layer, which protects the planet from the sun's harmful ultraviolet (UV-B) rays.
- Ozone in the upper atmosphere is destroyed by man-made substances such halons, hydrofluorocarbons, and chlorofluorocarbons (CFCs)
learn more about ozone here: brainly.com/question/520639
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