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Chapter 8 Lesson 1
Oceans
| Question | Answer |
|---|---|
| chemical process in which light energy, water, and carbon dioxide are converted into sugar | photosynthesis |
| to operate with hands or by mechanical means in a skillful manner | manipulate |
| Water in the oceans | seawater |
| The oceans were filled during tens of thousands of years with water from ___________ and possibly ice from comets and asteroids. | precipitation |
| The continental margins include the continental ________, the continental slope, and the continental rise. | shelf |
| The large, flat areas of the seafloor that extend across the deepest parts of the ocean floor are the ____________. | abyssal plains |
| In areas where tectonic plates collide, the seafloor has deep _______. | trenches |
| In areaa where tectonic plates separate, the seafloor has mid-ocean ______. | ridges |
| Oceanographers use ___________ to explore the seafloor. | submersibles |
| Physical characteristics that are used to classify the ocean into zones include water depth temperature, salinity, density, and amount of _______ received. | sunlight |
| Water from a sea or an ocean that has an average salinity of 35 ppt is ________. | seawater |
| Two main types of resources on the seafloor are _________ and ________ resources. | mineral & energy |
| The measure of the mass of dissolved solids in a mass of water is called ________. | salinity |
| The continental shelf, continental slope, and continental rise are regions of the continental ________. | plains |
| What is the term for an uncrewed submersible used to explore the seafloor? | ROV |
| Which zone does not receive any sunlight? | deep zone |
| What happens to density as depth increases in oceans? | it increases |
| The __________ zone receives some sunlight and extends from an average depth of 100 m to 1,000 m. | middle |
| The __________ zone receives no sunlight and extends below a depth of 1,000 m. | deep |
| Two main types of resources on the seafloor are _________ and ________ resources. | mineral & energy |
| What is the term for an uncrewed submersible used to explore the seafloor? | ROV |
| Which zone does not receive any sunlight? | deep zone |
| What happens to density as depth increases in oceans? | it increases |
| Salt water mixed with freshwater is _________. | brackish water |
| The __________ zone receives the most sunlight and has an average depth of 100 m. | surface |
| The __________ zone receives some sunlight and extends from an average depth of 100 m to 1,000 m. | middle |
| The __________ zone receives no sunlight and extends below a depth of 1,000 m. | deep |
Created by:
megenkel2162
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