The awnser is C) Lithospehere which is the crust and upper mantle of earth
All of the above. WWI combatants used cotton pads dipped into a solution, protective mask and urine drenched cloth to safeguard from chemical warfare.The first major poison gas attack in WW1 took place on 22nd April 1915, when the Germans released 150 tons of chlorine gas near Ypres.
Explanation:
Chlorine gas attack by the German soldiers resulted in the death of thousand french soldiers. Men who had the knowledge of chemistry acknowledged it to be the chlorine gas from its unique smell and they knew the simple solutions which counter effected the poisonous gas. They dipped the cloth in the simple solutions that were available in the trenches and that seemed to neutralize the gas effect.
But it did not prove to be efficacious as the chlorine gas was released in a concentrated manner which proved to be fatal for the french soldiers. Chemicals like sodium bicarbonate and sodium hyposulphate which were used in photography were also used but there was no lasting effect. Finally, The Canadian flank came up with a remarkable observation stating that urine soaked cloth masks were effective in combating the concentrated chlorine gas.
Answer:
Spices from Asia, such as pepper and cinnamon, were very important to the Europeans, but other items Europeans coveted included silk and tea from China, as well as Chinese porcelains.
Explanation:
Answer:
Eli Whitney
- Led to an increased demand for labor on cotton plantations
James Watt
-Decreased the amount of coal needed to pump water out of mines.
Jethro Tull
- Reduced the time and number of workers needed to plant crops.
Explanation:
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