Radiometric dating is the best way to determine the absolute age of rocks.

true

false

Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.

Classify the structures as homologous or analogous, depending on their structure and function.

Blank is a rock with a find dark texture that makes up the oceanic crust