Scientists are able to make observations and inferences about what is below the crust of Earth by using scientific evidence. Which of these are examples of evidence that scientists use to discover what the layers of Earth’s crust are like? Choose the two that apply. A. fossils
B. X-rays
C. seismic waves
D. samples of rock
E. digging below the surface

C. seismic waves & D. samples of rock

Explanation: Scientists record the seismic waves caused from the waveforms of different earthquakes to infer the structures below the crust of the Earth. They record these seismic waves through seismographs from a machine called the seismometer. Scientists also observe the samples of broken rock that they get from the destruction multiple different earthquakes to make comparisons and studies to provide us details of what the bottom of Earth’s crust looks like.

d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

answer ( groundwater);