What Zooplankton is considered a keystone species?
A) Ctenophores
B) Meroplankton
C) Pteropods
D) Krill
D
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What type of slope is most likely to experience a landslide?
A. features many trees and other plants and is steep B. is covered with grass, is of moderate steepness, and is wet C. features little vegetation and highly weathered rock, is steep, and is dry D. features little vegetation and highly weathered rock, is steep, and is wet
Instructions: Choose one answer from each pair of selections. During El Niño events, surface waters are COLDER | WARMER in the tropical eastern Pacific
In 2015, Germany has had major investments in renewable energy, and Germany has set a goal to eventually supply 80% of the nation's power through renewable energy. Which of these is the best conclusion to draw about Germany?
A) Germany has transformed its energy policies and economic infrastructure to accommodate development of renewable energy. B) Germans are less concerned about global climate change than other European Union nations are. C) All German renewable energy development is controlled by one central federal agency. D) The amount and efficiency of energy produced will fail to meet public demand.
The most common group of minerals in Earth's crust are the ________
A) oxides B) carbonates C) native metals D) silicates