I would say D. Fossil fuels must be burned to release their energy.
<span>B) secondary
</span>In 2006, an underwater volcano created a new island near the Tonga Islands. Since then, waves and other forces of weathering have created beaches on the<span>island. These beaches are considered _____ landforms.
</span>
NOT:
primary
tertiary
The mission of the U.S. Fish & Wildlife Service is to "working with others to conserve, protect, and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people."
Ruler, Key, Compass, Pencil
Answer:
An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. A closed circuit is one that is complete, with good continuity throughout.
Explanation:
For instance, a simple light switch opens and closes the circuit that connects a light to a power source. When you build a circuit, it's a good idea to disconnect the battery or other power source when the circuit is not in use.
