A Shut the water off except during lunch time. B Take out all classroom faucets

C Fix the leaks in the faucets, water fountains, and toilets.

D Shut water off during the weekend while school is not in session.

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a.doing door-to-door sellingb.using billboards to advertise the productsc. making online shopping services availabled.giving discounts on products

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Isolated volcanic peaks on the ocean floor are