<span>The region is predominantly a volcanic area as there are a lot of activities in the place. The Aleutian arc itself is a volcanic arc that is made up of a number of active and inactive volcanoes. The name Aleutian is a name of a nearby island. In a nutshell the arc suggest that there are a number of geographic activities such as volcanoes happening in that area</span>
Answer:
Radioactive isotopes are unstable and will decay. ... The isotopes will decay into a stable isotope over time. Scientists can tell how old the rock was from looking at the radioactive isotope's half-life, which tells them how long it would take for there to be half the radioactive isotope and half the stable isotope.
Answer:
wheat, rice, barley, oats, coffee, sugar cane, citrus fruits, melons and Kentucky bluegrass.
D) Territory
For example Puerto Rico is its own country but is territory of the United States.
Answer:
There are four main ethnic groups living in the Middle East. The Arabs are the largest, making up 75% of the region's population. Their ancestors were tribal members from the Arabian peninsula. The Persians reside mainly in Iran; their ancestors came to the region from Central Asia. The Kurds live in a rural, mountainous area between Iraq and Turkey. Many of them make a living as farmers or herders. Like the Persians, the Turks also have ancestors from Central Asia. This group lives in Turkey.
Explanation:
