Can someone plz help me? This is creating systems of Linear equations.

What does the kyoto protocol aim to reduce

About 140,000 japanese died in this japanese city when americans dropped an atomic bob at the end of world war ii

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust