The answer is ethnic group.
This is when they share common traits such as their nationality,
ancestry, culture and shared religion, language as well as other
characteristics. There are times when
some leave one ethnic group and join others. This can be seen when they go to
other places and settle there.
To complete the sentence above, the correct answer that would fill in the blank is the -- due to a phenomenon like the phantom limb. It is because the tinnitus does not differentiates loudness or could occur because of with the people who has deafness. It also does not found in the very young age for this happens in different ages.
Answer:
At the start of the war the land and sea forces used the aircraft put at their disposal primarily for reconnaissance, and air fighting began as the exchange of shots from small arms between enemy airmen meeting one another in the course of reconnoitering. Fighter aircraft armed with machine guns, however, made their appearance in 1915. Tactical bombing and the bombing of enemy air bases were also gradually introduced at this time. Contact patrolling, with aircraft giving immediate support to infantry, was developed in 1916.
Explanation: