1 poir Based on the visible changes in the rock formation, do you think the
changes occurred quickly or slowly over time? Explain your reasoning. *
Your answer
pls help me

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

Which law represents a balanced chemical equation?

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science