if the sound intensity level produced by 10 identical buzzers in a garage is 100 db, what is the sound intensity level generated by each one of these buzzers?

Give an example of the type and scale of economic activity for a traditional economy.

What should you adjust to make your hard hat fit properly

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.