Damage to the ozone shield over the united
states is likely to cause
(1) increased warming of local ecosystems
(2) increased exposure to ultraviolet light
(3) reduction in the ph of acid precipitation
(4) reduction in the frequency of floods and
droughts

Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.

What is the "great pacific garbage patch"? a large area of marine debris concentrated by rotating ocean currents a large area around the pacific rim where debris collects from natural disasters such as tsunamis an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability a large trash dump located in hawaii

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?