. En 1/2 hora, un ciclista recorrió 20 kilómetros. ¿Cuál fue el promedio de velocidad del ciclista? a. 10 km / h b. 60 km c. 40 km d. 40 km / h Por ayúdenme respóndanme rápido

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory

Which source of nutrition information is the least trustworthy

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources