Which aspects of seasonality are caused by either revolution or rotation? select the three that apply.

a. duration of the seasons
b. daily pattern of days and nights
c. shortening of the year perpetual daylight at equator length of a tropical year

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle