<h2>
The End of Trans-Saharan Trade Routes:</h2>
Explanation:
The factors that led to the end of trans-Saharan trade routes are:
- Civil unrest due to collapse of the Songhay Empire, the Timbuktu, by the Morracans in 1591
- The extreme desert conditions like extreme climates, excessive heat, lack of water and food etc made the travel logistics very tough. This made people opt for other transport systems
- Huge advancements made in maritime travel
- Exploration of West African trade routes
- Economic, political and social changes which led to the end of trans-Saharan trade routes
D. Stratovolcanoes are the most common types of volcanoes in contrast to the less common shield volcanoes and include Krakatoa and Vesuvius
Explanation:
The statement that does not describe a stratovolcano is the last option.
Cindercone volcanoes are the most common types of volcanoes and are more common than stratovolcano.
A volcano is a landform that originates from magma that cools and solidifies on the surface of the earth.
- Stratovolcano are also called composite volcano.
- They are steep sided volcanoes often with water craters in this middle.
- Some of the lava cools in a stratovolcano before reaching the surface and can lead to violent eruptions.
- They are usually found along destructive margins.
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1.51 is the partial pressure of gas Y. as At 300 K, the volume of the flask that contains a gaseous mixture of two gases, X and Y, is 20 L. If the total pressure of the container is 2 atm and 0.1.
<h3>What is
gaseous mixture?</h3>
The gaseous combinations that are properly considered in this book are blends of different ingredients that may or may not vary outside of certain bounds.
These gases often belong to the category of "fuel gases," and each gas is any of a number of fuels that are gaseous at normal temperatures and pressure.
Thus, 1.51 is the correct answer.
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