Please help me with the questions on the picture

1. The Nile River

2. The Sahara Desert

3. The Red sea.

4. The Mediterranean Sea.

Explanation:

1. The Nile River: a natural source of fresh water that provided fertile soil for farming. The Nile’s water is a body of water known as River Nile. It has its source from Burundi and flows through the North-Eastern part of Africa, Egypt precisely and it flows for over 4,132 miles (about 6,650km) before draining into the Mediterranean sea. River Nile is considered to be the longest river in the world and comprises of white nile and blue nile.

2. The Sahara Desert: a large stretch of dry land that made Egypt difficult to invade from the west. Sahel refers to a semi-arid region of land that is strategically positioned to south of the Sahara Desert and it is typically made up of barren planes with very few trees and dry area of grasses.

3. The Red sea: a body of water east of Egypt that allowed ancient Egyptians to trade with Asia.

4. The Mediterranean Sea: a large body of water that allowed for trade with coastal cities in Asian and Europe.

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.