Could a ph sensitive color indicator be used to reveal the presence of a contaminant in a fluid that should be sterile? explain

Yes,

Explanation: If the contaminant is present in the fluid then it will definitely convert the fluid from acid to base or from base to acid. Any slight change in the fluid can be sensed by the pH indicator.

This change will be observed by the pH sensitive color indicator and we will come to know whether the fluid is sterile or not.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean