Discuss the history of the Earth’s atmosphere. How has the atmosphere changed from the
earliest Precambrian to the present? What processes were responsible for this change? What will be an ideal response?
The student should discuss Earth’s original atmosphere formed by outgassing. Photochemical
dissociation and photosynthesis were responsible for the change to an oxygen-rich atmosphere.
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Which of the following solutions is the most concentrated?
A. 3.0 L of a 0.5 molar solution B. 2.0 L of a 1 molar solution C. 0.5 L of a 1 molar solution D. 0.5 L of a 3 molar solution E. 2.0 L of a 2 molar solution
On June 21, which location will be receiving 24 hours of daylight?
A) Antarctic Circle B) Tropic of Cancer C) Tropic of Capricorn D) Arctic Circle
Lung-fish are important in the fossil record because amphibians evolved from them. Indicate whether the statement is true or false
Currently, the most successful method of harnessing and using solar energy to produce electricity is the photovoltaic devices.
Answer the following statement true (T) or false (F)