Overall, how has science impacted human health?
a. more types of surgery, so more unsafe procedures.
b. increase in pollution has lead to a decrease in average lifespan.
c. increased average lifespan to 78 in the us.
d. it has had no effect.

Drag the tiles to the correct boxes to complete the pairs. match wach fossil with the layer where it’ll be present based on these condition

Earth is tilted on its axis. which of these would not exist if earth had no tilt?

The image shows a sandstone formation with visible bands of different colors. what do the bands indicate about how this sedimentary rock was formed? choose two answers. a). the rock was made from more than one material. b). water was absent during the compaction and cementation process. c). sediments and other matter were deposited in layers before lithification. d). the rock was stretched horizontally by the pressure from surrounding rocks. e). layers of hot liquid in the rocks cooled and solidified at different tempatures