Which of the following is an observation and not an inference? a. a cup with steam coming from it will be hot to the touch. b. dark clouds in the sky will mean rain later in the afternoon. c. bubbles form when two chemicals are mixed together. d. a plastic bag moving along the ground is being pushed by the wind.

Bubbles form when two chemicals are mixed together is an observation.

Explanation:

Observation is a process where you use one or more of your senses (ear, sight, smell, touch, taste) in order to gather information. An inference is an explanation to an observation, it explains why did the thing that you describe in the information happened, it also adds more detailed information and additional information about it.

in a way yes you create your own scheduele but you kind of dont too

explanation:

i would say b. good luck!