Answer: in mixture water molecules comes closer to ethanol molecules because of hydrogen Bonds. Then smaller water molecules occupy less volume than in pure water.
Explanation: water molecules are smaller than ethanol molecules.
Both form Hydrogen bonds in pure form and in water-ethanol mixture.
Water molecules fill better space between ethanol molecules.
I think volume of the mixturecoild be 59.6 -59.8 cubic cm
Answer:
D.
Explanation:
Most settlements in the Middle East, especially Arabia are near the sea. Historically the main industry was trade and fishing, so those towns would be very important to those industries. Most new modern settlements are in areas with oil, those towns are mainly for the workers. The Middle East doesn't have a lot of the materials naturally from the other answer choices.
Answer:
<u>In glaciers, North and South poles and some lakes.</u>
Explanation:
- As more than 70% of freshwater can be found in continental glaciers around the world. The rest is in icecaps and 0.5 % store in lakes and rivers, and swamps.
- Rest if possible may be found in the groundwater aquifers, hidden in remote and cut off lace of the world.
- Antarctica and arctic alone consist of a huge share of freshwater in the world which is stored in ice forms. While 97% of oceanic water is saline not fit for drinking.
- Various techniques are available for desalination of water but most of it not suitable for long term use. As it may have bacteria and harmful effects on the body. Due to climate change release of methane gas and other harmful greenhouse gases are quickly melting and depleting the freshwater r
An island is a piece of land surroinded by water. Hawaii and The Keys are examples
