Question

question 1 - 23
mrs hughess class is studying different types of open and closed systems. which of the following is not an example of an open system? (sc.912.p.10.2)
a goldfish bowl.
plants in a sealed terrarium.
a goat in a petting zoo.
plants and animals in a neighborhood pond.

Explanation:

An open system exchanges matter and energy with its surroundings. A goldfish bowl exchanges water (matter) and heat (energy). A goat in a petting zoo exchanges food (matter) and heat (energy). Plants and animals in a neighborhood pond exchange water (matter) and heat (energy). Plants in a sealed terrarium do not exchange matter (as it is sealed) although it can exchange energy (light for photosynthesis).

Answer:

Plants in a sealed terrarium.