Answer:
1879
Explanation:
It was made on 1879, by Thomas Edison
Answer:
C.
Explanation: The US has been characterized by some as a neo-imperialist power of the 20th and 21st centuries.
The correct answer is - Large numbers of migratory birds;
The number of the migratory birds has always been pretty high and it hadn't resulted in the drying up of the Ogallala Aquifer, not to mention that those birds can not even reach that water because it is underground. Also, the number of the migratory birds have been steadily lowering, so even if they were using that water for drinking, it wouldn't have caused the drying out.
The Ogallala Aquifer has started to dry out because of numerous reasons, with the usage of its water for irrigation being the prime reason. The droughts have become longer, and the temperatures little higher, while the rainfall slightly smaller, so all of that affected the reserves of water in the aquifer negatively.
George Goethals was the military engineer who completed construction of the Panama Canal. The correct option among all the options given in the question is option "d". He was appointed the chief engineer of the Panama project by President Roosevelt on 26th of February in the year 1907. Goethals was absolutely determined in seeing through the job that was handed over to him by the President.
