Drag each item to indicate whether it describes a benefit or a challenge of green roofs. Absorption of carbon dioxide.

Regulation of urban climate.
Slow release of storm water runoff.

Time needed to care for plants.

Cost of maintenance.

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass