One gets it right they got brainliest
which geologic principle explains why the bottom stratum in a section of rock is the oldest?

cross-cutting relationships
superposition
unconformities
uniformitarianism

Which process is involved in growing crops? irrigation transportation recreation condensation

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d