Answer:
D. All of these
Explanation:
Mark should control (or keep constant) the location of the plants, the amount of water the plants receive daily, and the amount of fertilizer the plants recieve daily. The only variable that should change is the type of fertilizer that is given to each plant.
During a scientific experiment, only variable should be changed by the investigator. All other variables should be kept constant.
Answer:
La Biblia )es un conjunto de libros ... Su influencia en la historia mundial no tiene equiparable, y no tiene síntomas de estar ... se definió el principio llamado sola escritura», que significa que solamente la Biblia ... Narra la conquista de Babilonia por Ciro el Grande.
Explanation: