The precession cycle has a periodicity of ____
a. 100,000 years
b. 41,000 years
c. 21,000 years
d. 11,000 years
c
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Organisms that break down bodies of dead plants and animals into nutrients that are released into the soil or water are called
a. Detritivores b. detritus feeders c. Decomposers d. Scavengers e. Omnivores
The continents of the words were once connected, forming a supercontinent called Pangaea
Indicate whether the statement is true or false
This biome is generally located north of the 10°C (50°F) isotherm for the warmest month, such as the extreme northern areas of North America and Russia
A) temperate rain forest B) arctic and alpine tundra C) boreal and montane forest D) midlatitude broadleaf and mixed forest
A particle of water in a wave moves in a circular orbit as the wave passes; the particle returns to its original position after the wave has passed.
Answer the following statement true (T) or false (F)