How do scientists measure melting of the Antarctic ice sheets?
What will be an ideal response?
With remote sensing from satellites combined with limited onshore and offshore observations such as ice cores that can include radar and photography. The images are then used to delineate the edges of the sheets and shelves, estimate the fresh water runoff, and estimate the depth/mass of the existing ice.
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How might building a dam on a river that flows to the sea affect a coastal beach?
What will be an ideal response?
Fig species depend on ________ to transfer pollen from male to female flowers
A) mosquitoes B) ants C) butterflies D) bees E) wasps
The Law of the Sea permits each coastal state to claim an exclusive economic zone that extends ________ nautical miles from shore
A) 3 B) 12 C) 100 D) 200
What are the principal gaseous components of Earth's atmosphere? Where do scientists believe these gases originated?
What will be an ideal response?