Which would be an adaptation for living in the tundra?

1. funnel shaped leaves to water run off
2. deep roots to go into the permafrost
3. hibernation to lower metabolism in the water
4. large ears to release heat

quick

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged