SUBSTANCE: Material composed of only one kind of matter throughout (same atoms or same molecules) ELEMENT: A substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen.
Sand is the most permeable. PLS ANSWER MY QUESTIONS 2
Your answer is D. Nucleotide
She should ask how far apart are the contractions, has your water broken, etc
All organisms depend on C. ENERGY