Padre island, the largest of Texas barrier islands is a nesting area for a variety of sea turtles it is also a temporary home for a variety of rare birds that migrate from North America to South America How does the biodiversity of Padre island affect the sustainability of its ecosystems

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added