Classify the nouns in CONCRETE , ABSTRACT OR COLLECTIVE: humour
kindness
army
danger
committee
towel
jury
audience
bird
orchestra

Solve it plsss I need it ASAP

What is the best way to manage oil transport on waterways? a. prevent oil spills and regulate the amount of oil that can be shipped at one time.b. use a skimmer, containment boom or chemical dispersant to clean up spilled oil.c. burn off oil spills from the water's surface when they occur.