An igneous intrusion that cuts through a layer of sedimentary rock must be older than the sedimentary rock it cuts through.
true
false

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Describe the structure of amino acid, including what makes amino acids different from eachother