Choose the correct word to complete the following sentence: "The fragile ecosystem was ____________ by the introduction of an invasive species."

What is the meaning of the word "acid rain"?

What is the meaning of the word "ecological footprint"?

What is the meaning of the word "wetlands"?

Choose the correct word to complete the following sentence: "The trees ____________ a canopy above the forest floor."

Choose the correct word to complete the following sentence: "The ice caps are ____________ due to global warming."

What is the meaning of the word "habitat loss"?

Choose the correct word to complete the following sentence: "The sound of the waterfall was ____________ in the distance."

What is the meaning of the word "greenhouse gases"?

What is the meaning of the word "agriculture"?