Explanation:
step 1. let called the acute angles inside the triangle <1 and <2.
step 2. <2 +140 = 180 (supplementary angle)
step 3. <2 = 40°
step 4. <1 + <2 + 90 = 180. (interior angles of a triangle = 180°)
step 5. <1 + 40 = 90
step 6. <1 = 50°
Probably due to the time of year, or they live close to a ocean
Answer:
tectonic plates are floating on top of the molten rock and moving around the planet like leaves on water. they bump into each other or move away from each other
geography4kids
when converging plates will move beneath the other its subduction
noaa
there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.