In each of the following pairs choose the form of radiation with the longer wavelength.

Summarize the work of famous environmental scientists of the past.

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.

Rawls says that justice sometimes requires the sacrifice of things like freedom of speech for the sake of greater economic equality. true or false