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WorksheetsLayered Planet
Total questions: 10
Worksheet time: 9mins
Water is the giver of life. The earliest living organisms on Earth are called stromatolites. Approximately 2 billion years old give or take a couple of million years. Stromatolites are a form of __
Annelids (worms)
Bivalves (clams)
Viruses
Cyanobacteria
The earliest form of life (blue green and purple algae) are likely associated with ____, which supply nutrients and heat necessary to create biomolecules.
The protoplanet Theia
Comets
Hydrothermal vents
Gamma radiation
The changing of season is primarily due to
Earths elliptical orbit
The angle in which solar rays form the Sun directly hit the Earth surface
Earth's rotational speed
Solar flares
Much of the movement of water in the atmosphere and in the ocean is due to the transfer of heat by convection. As water warms it becomes less dense and rises, then cools, becomes more dense and sinks. The formation of convection cells or gyers is important for ______
producing fresh water
transferring nutrients
creating currents
wind movement
re-oxygenating marine waters
What causes the Coriolis effect?
Uneven heating of the atmosphere and hydrosphere due to the Earth's rotation.
Ocean currents
Trade winds
Gyres moving in a counter clockwise rotation in the southern hemisphere
Name 3 factors that are important in soil development.
Evaporite minerals such as Halite (NaCl) and Gypsum (CaSO4) are most likely to form in which terrain.
Mid-Oceanic Ridge
Thermal Vent
Forarc Basin
Volcanic Arc
The Earth's crust can be generally split into Oceanic Crust and Continental Crust. Characteristics of Oceanic Crust consist of all of the following, except _______ and ______
Relatively old
Relatively young
Dense
Compositionally made of felsic minerals
Relatively thin
Topographic features in the ocean include guyot, seamount, mid-oceanic ridge, and volcanic island. Place the features in order of the youngest to oldest feature.
(Hint, the order is related to the movement of the oceanic plate.
Use a comma between features. lower case spelling.
(a)
Of the geologic features in Oregon, which one is the oldest?
Alvord Desert (Harney County)
Mount Hood (Hood River County)
Mount Neahkanie (Manzinta)(Tillamook County)
John Day River (Deschutes County)
Eagle Cap (Wallowa Mountains)(Union County)
