The images show slices of sedimentary rock in Earth's surface in two different locations. Slice from location 1
Slice from location 2

Which layer is most likely the oldest in location 1?
A
layer Q
B
layer R
C
layer s
D
layer T

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

What is any method of measuring the age of an object or event in years, such as using atomic half-life?