How have humans impaired the ability of the Earth to remove CO2 from the air?
A. clearcutting tropical rain forests
B. polluting the ocean
C. melting the Arctic ice cap
D. planting trees in deserts in Africa
Answer: A
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Glaciers and glaciation have always disrupted human transportation routes due to icebergs and glaciers
covering roads or train tracks. Indicate whether the statement is true or false.
What type of net has been particularly disruptive in the mistargeting of species?
A) Trawl nets B) Drift nets C) Purse seines D) Gill nets
What are the three major structures (shapes) of volcanoes?
a. composite cone, dome, and strato volcanoes b. shield, dome, and pipe-shape volcanoes c. shield, strato, and cinder cone volcanoes d. shield, cone, and neck volcanoes
You examine an igneous rock that has mineral grains which are 2.5 cm in size (large), and are primarily dark green and black color. Which statement concerning the rock is not accurate?
A. A likely rock name for this specimen would be a gabbro. B. The textural classification of the rock would be coarse grained. C. This rock likely has minerals with chemical elements like iron and magnesium in them. D. The composition of the magma that formed this rock would be Felsic. E. This rock would be classified as a plutonic rock.