When students set up an aquarium in the biology classroom, they are creating an artificial ecosystem. Even though this aquatic ecosystem depends upon humans to maintain it, the aquarium has all the components of a natural ecosystem. Use this information to answer the questions that follow. The light on the top of the aquarium provides what component of an ecosystem?

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

protistas excret ethanol used in the manufacture of vinegar