One method I know of is comparing a sample of the rock to other samples which the scientist already knows the age of. I forgot what this method is called but I know it's used by lazy scientists that use other scientist findings like the age of a rock to compare to their own work
Answer:
Carbon Cycle Definition
Carbon cycle is the process where carbon compounds are interchanged among the biosphere, geosphere, pedosphere, hydrosphere, and atmosphere of the earth.
Carbon Cycle Steps
Following are the major steps involved in the process of the carbon cycle:
Carbon present in the atmosphere is absorbed by plants for photosynthesis.
These plants are then consumed by animals and carbon gets bioaccumulated into their bodies.
These animals and plants eventually die, and upon decomposing, carbon is released back into the atmosphere.
Some of the carbon that is not released back into the atmosphere eventually become fossil fuels.
These fossil fuels are then used for man-made activities, which pumps more carbon back into the atmosphere.
Hope it helps!!!
Answer:
Prophase 1
Explanation:
In prophase 1, homologous chromosomes pair up and exchange sections of DNA in a process called crossing over.
Answer:
the drive-reduction theory
Explanation:
The drive-reduction theory is one of the theories of motivation.
This theory contains the idea that a physiological need creates a drive, which in turn motivates an organism to satisy their need.
The theory targets homeostasis or biological balance.
When there is a need such as lack of water, the need would cause a drive to be developed (thirst).
The drive would activate a response (search for water to drink).
The response is then terminated when the need has been satisfied.
