What is some of the evidence establishing that climate change is currently occurring?
What will be an ideal response?
Temperature data showing an undeniable warming trend; retreating glaciers, loss of mass of ice sheets; reduction of permafrost; reduced summer sea ice; sea level rise; changes in extreme weather events; etc.
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In what form do aromatic amines exist at physiological pH (pH= 7.4)?
A) largely as neutral molecules B) largely as their conjugate acids C) as a mixture of neutral molecules and their conjugate acid, but with a slight predominance of the conjugate acid D) as a 50/50 mix of neutral molecules and their conjugate acids
Glaciers are part of the hydrologic cycle.
Indicate whether the statement is true or false.
How does "space weather" affect you?
A. It causes electrical surges that can disrupt power systems. B. It causes the Earth's magnetic field to form and permits navigation. C. It causes moving air and clouds on Earth that causes weather systems.
Each molecule of hemoglobin can carry up to ________ oxygen molecules
A) 1 B) 2 C) 3 D) 4