Answer:
<u>Ecological systems</u> are complex systems that have various sub systems acting under them.
Explanation:
Earth is made up of a complex of systems known as the Geo ecosystems this ecosystem is a dynamic entity in itself as various Biological realms are present in earth ecosystem that is composed of water, marine, forest and other ecological systems that tend to sustain itself if there is any break in this system or there is any sort of disequilibrium in energy flow the changes in one ecosystem can have negative impacts on other ecosystems. Likewise, humans can also and have disturbed or modified the ecosystems according to their needs. As these interactions are governed by a set of feedback mechanisms. For example the natural disasters like hurricanes, cyclone, and other climatic disasters.
Answer:
B. It lacks the technology and know-how to use these resources,
Explanation:
Niger has one of the highest and largest uranium deposits in the world. It is one of the most mineral rich countries in the world.
But poor education coupled with a lack of technology and technical competencies bedevils this nation.
- It is not enough to have resources, a nation must able to use and crystallize value from its resources.
- Due to the poor educational infrastructure in Niger, the rate of education is low and qualified technicians are at a dearth.
- This leaves the country more resource cursed than being resource blessed.
- The country also has one of the highest birth rates in the world.
<span>Europeans began trading slaves with Africans during the fifteenth century.</span>
Measuring in light-years also allows astronomers to determine how far back in time they are viewing , Because light takes time to travel to our eyes. Everything we view during the dark in night has already been happened.
