Lava and other materials that are launched from a volcano into the air are referred to as
Your answer here is letter B. tephra
It established a way to transport textiles and agriculture trade from Africa to Europe, during the early-mid 1800s it was a big accomplishment.
Answer:
Best example would be Carnot engine. It is possible in theory not in real life.
Explanation:
In real engines, the heat transfers at a sudden change in temperature whereas in a Carnot engine, the temperature remains constant. In our day to day lives, reversible processes can't be carried out and there is no such engine with 100 % efficiency. Thus, the Carnot cycle is practically not possible.
Answer:
The answer is A. This is because Camella wanted the reforms to fight back against the hard-liners and she felt frustrated and disappointed when the reforms didn't fight back against the hard-liners.
This is a true statement!
For example, the biggest city in the Sahara (admittedly placed on the edge of it, on the Atlantic coast) is Nouakchott, the capital of Mauritania - it has 1 million people, so a great portion of the 2.5 million.
Another big city is Ghardaia in Algeria - of 100 000 people.