Answer:
Poor planning, and disease
Explanation:
The obstacles that the French faced while attempting to build a canal across Panama were diseases and poor planning. The French dealt with constant outbreaks of malaria and yellow fever, which slowed construction and caused the deaths of thousands of workers. The French also did not take into consideration the geographical differences between the Suez Canal region and the Panama region. The French had succeeded in building a canal at sea level in Egypt, and they mistakenly thought a similar design would work in Panama. However, the difference in the Atlantic and Pacific Ocean sea levels, as well as the difference in elevation of the Panamanian terrain, prevented them from building a sea-level canal. The United States knew about these two problems when they undertook the project. They took preventative measures by reducing the disease-spreading mosquito population and using a canal-lock system to overcome the elevation obstacle in Panama.
I believe that it is a waxing gibbous and a waxing crescent
I want my answer deleted I don't want to answer sorry I feel bad
Answer:
Factors includes :
Climate changes
Dissolved Oxygen
Explanation:
Climate change is one factor that causes migration of marine life from tropic water to colder water due to global warming in search of warms around them. This animals are moving towards the poles to escape the heat.
Climates changes is also a factor that affect ecosystem of marine animals along the ocean/continent margin. As global temperature increases, sea level rises and currents will be affected pushing nutrient to the shores of oceans.
Dissolved oxygen , As temperature increases the solubility of oxygen decreases. Therefore, dissolve oxygen is more present in colder water than warm water. The abundant availability of dissolved oxygen thereby drives marine animal to colder water.
As a terrestrial planet with a thick nitrogen-oxygen atmosphere, Earth's appearance comes down to the light-scattering effect of our planet's atmosphere and our oceans, which causes blue light to scatter more than other colors because of the shortness of its wavelength.
