9.A scientist plans to study tiny organisms containing enzymes that function in a high temperature environment. Which of these statements best describes the first step in the investigation? (SC.912.N.1.1)
A Graphing data relating to the organisms
B. Collecting and recording observations about the organisms
C. Making conclusions concerning the organisms
D. Sharing information about the organisms with other scientists

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

very