Our alternating days and nights are caused by:

a. the rotation of Earth on its axis
b. the revolution of Earth around the sun
c. both the rotation and the revolution of Earth
d. the distance of Earth from the sun


a

Environmental & Atmospheric Sciences

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To be in the same family, languages must share the same

A) vocabulary. B) alphabet (or script). C) origins. D) grammar. E) dialect.

Environmental & Atmospheric Sciences

All of the following are adaptations that promote survival of the boreal forests except

A) having a dark, rough surface. B) having needles instead of leaves. C) having some trees that grow faster than others. D) All of these are adaptations that promote survival in the boreal forests.

Environmental & Atmospheric Sciences

Secondary structure is associated with which of the following?

A) the sequence of amino acids B) hydrogen bonding within the backbone C) hydrogen bonding between the side chains D) the interaction of protein subunits

Environmental & Atmospheric Sciences

An oceanic transform plate boundary is most likely associated with a(n)

A) oceanic trench. B) mountain belt or island arc. C) midocean ridge. D) All of these are correct.

Environmental & Atmospheric Sciences