| A | B |
|---|
| three mechanisms of energy transfer | radiation, conduction, convection |
| causes air to be denser near Earth | gravity |
| Without the greenhouse effect, Earth's atmosphere would be to __ to support life | too cold |
| this contains all the water on or near Earth's surface | hydrosphere |
| where is most fresh water located | ice caps and glaciers |
| Ocean water is different from fresh water how | contains more salt |
| deep currents flow where | along the ocean floor |
| surface currents circulate is different direction depending on what | the hemisphere is which they occur |
| layer of the ocean extending from the base of the thermocline to the bottom of the ocean | deep zone |
| Earth is what kind of system with respect to energy | open |
| What part of Earth encompasses all areas where organisms can obtain the energy they need | biosphere |
| currents at the surface of the ocean are driven by what | wind |
| with respect to matter Earth is what kind of system | closed |
| the energy in most ecosystems come from | the sun |
| organisms can adapt to what | physical surrounding and other organisms |
| an organism is resistane to a chemical if | it has a gene that protects it |
| the process of two species changing genetically in response to long-term interactions with each other | coevolution |
| most scientists classify organisma into | six kingdom |
| what converts nitrogen in to the air into a usable form | bacteria and lightning |
| most land animals depend on anigiosprerms for | food |
