Answer:
The problems that the Middle East faces because of water scarcity are that the population is concentrated in very small areas, agriculture is on a low level, and the population growth is limited. Some of the strategies used for this problem are strictly controlled water supply, desalinization, and artificial rainfall.
Explanation:
e The Middle East is one of the poorest regions in the world when it comes to water supplies. This has caused numerous problems and even nowadays with the advancements of technology they are hard to solve. Because there are huge areas that don't have any water at all, the populations are usually very concetrated near the very few water supplies. The population growth is limited because there simply isn't enough water for large population growth, and agriculture is only possible in small areas, while it lacks in the majority of the region.
In order to solve some of these problems, the leaders have been coming up with some solutions. Israel has been using technology to produce rainfall, which has had excellent results. The water supply is heavily controlled and no one is allowed to overuse it. The biggest problem, water for drinking, has been solved by using the process of desalinization of the saline water.
Answer:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Explanation:
The amount of the sample of the radioactive isotope decays exponentially in time, the amount of mass of the sample as a function of time (
), in grams, is described below:
(1)
Where:
- Initial mass, in grams.
- Time, in years.
- Time constant, in years.
The time constant can be found from half life (
), in years, described in statement:
(2)
If we know that 
, 
and 
, then the current amount of the sample is:
The current amount of the Potassium-40 sample is approximately 37.521 grams.
Sound wave is a pressure caused by the vibration of something in a medium that transfers anergy, like air.
The correct answer is - cyanobacteria.
The atmospheric oxygen came from the cyanobacteria. These were one of the earliest living organisms on Earth. The cyanobacteria was using photosynthesis in order to create its own food. The photosynthesis process requires sunlight, carbon dioxide, water, and oxygen. The oxygen is mostly released as a waste product from the process of photosynthesis, thus the cyanobacteria were literally releasing oxygen that was ending up into the atmosphere. As more and more cyanobacteria there were across the planet, more and more oxygen they were releasing into the atmosphere, slowly changing the composition of the atmosphere, and setting the basis of it as we know it now.
Answer:
Aumento del costo de los servicios con tendencia al colapso. - Aumento de los impuesto y del coste de la vida en general. - Descenso de la calidad de vida
