2. Como se explica la acción de las fuerzas universales (gravitatorias, electromagnetecas e internucleares) en cada teoría sobre el origen del universo. teoria innfalcionaria
teoria de universo estacionario
teoria de universo oscilamte o pulsante
tepria del big- bang o de la gran explosion

the answer is:

carbon dioxide

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation:

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex