Small, broken pieces

A person who knows a great deal about history.

Whole or complete

Small pieces or parts of something that are left over

Protected so it does not decay or get damaged

To put back together

A person who digs up and studies remains of ancient towns and cities

Which word means "to spread where it is not welcome?"

Which word means, "people who strongly support or defend something?"

Which word means, "to choose someone for a task?"

Which word means, "to happen for the first time?"

Which word means, "a material used to keep something warm or cold?"

Which word means "to not be reasonable?"

Which word means "ordinary or unremarkable?"

Which word means "best or appropriate?"

How is the vocabulary word used in the sentence below?

"Advocates of living in greener communities believe the advantages far outweigh the drawbacks.'

How is the vocabulary word used in the sentence below?

"They think it is irrational to delay solving environmental problems."

How is the vocabulary word used in the sentence below?

"Rooftops covered with grass and other living plants provide insulation that keeps buildings cooler."

How is the vocabulary word used in the sentence below?

"It is commonplace in the green city to use sources of energy that are renewable and cause no pollution."

How is the vocabulary word used in the sentence below?

"Most people in the green city of the future designate mass transit as their preferred method of travel."

How is the vocabulary word used in the sentence below?

"Because native plants are native to the ecosystem, they provide the optimal habitat for local insects, birds, and other animals."

How is the vocabulary word used in the sentence below?

"Otherwise, they may become invasive and overwhelm local species. "

How is the vocabulary word used in the sentence below?

"The savings over several years on the cost of electricity and carbon-based heating fuels soon exceed the higher initial cost of the energy-saving features."