D.becuse it's seems the answer
Just a couple things
diseases that affect them during pregnancy
birthing troubles
possibly cultural or religious traditions that would make it hard for them to survive.
There were lots of foreign changes that presented challenges for the US. I'll give you a few examples from different time periods. First would be when England wanted to tax the Americans in the Revolutionary period. They did this to try and restrict America's freedom. Another example would be that Russia had spies during the cold war period. This was to gain intelligence of the US war plans. Also when Germany sent the Zimmerman Telegram to Mexico during the WWII period. This was to get Mexico to launch a surprise attack on the US.
Answer: They are similar because they both have a common ground and are both principal to their tribes and colonies.
Explanation:
The Monroe doctrine was a doctrine used to oppose European colonial in the United States. It was a united states policy that started in 1823 in the US. The US had pledged to eschew from European business and also wants Europeans to do the same in the Western Hemisphere.
Adams-Onis Treaty also called "Transcontinental Treaty" that started on February 12, 1819, this treaty was adopted to settle border issues which involves the Spanish empire and the United States that really helped national security. What really lead to this treaty was the constant border raiding by Seminoles out of Spanish Florida. This treaty in Spanish is "Tratado de Adam- Onions"
The Aswan High Dam was built to regulate and control the annual flooding of the Nile River in order to protect crops and property from such uncontrolled flooding and to generate electricity. Most of its effects have been positive but several environmental effects are:
- Water-logging: because of the continuous high levels of water, the soil around the area is saturated with water, which prevents oxygenation of the soil that is essential to several plants and crops.
- Salinization of soils: caused by the inability of water-saturated soils to absorb salt, it is toxic to crops and damaging to infrastructures.
- Soil Erosion: it is a consequence of soil salinization as crops die and are unable to hold the soil in place.
There were also other negative effects such as:
- Archeology: two important archeological sites of Ancient Egypt were flooded and covered by the dam waters: the ancient cemetery of Fadrus and the Buhen fort.
- Loss of sediment: the annual flooding carried an enormous amount of sediment that is now trapped within the resulting Lake Nasser. Many of these sediments were used by local industries to manufacture bricks and they lost access to this renewable source of raw materials.
- More expensive and difficult purification of water: because the water does not move as much it is more transparent and allows the sunlight to penetrate deeper. This, combined with the trapped sediments has increased the growth of algae that have proliferated to the point that water purification is more and more expensive due to the necessary removal of this plant.
