What substances can we separate using decantation? More than one option is correct. * - Sediments from metals -Liquids from sediments- Liquids of differente density- Metals from wood

b. Liquids from sediments.

c. Liquids of different densities

Explanation:

Decantation is a separation method in which a liquid layer of a mixture is separated. it is also used to separate two immiscible liquids. The upper layer is poured into another container during the separation process.

When there is a mix of a liquid and sediments, decantation can be used to obtain the decant. In addition if two liquids of different densities form a mixture, after some time the liquids separate and form a partition between them. The less dense liquid floats and could be decanted to separate it from the other liquid.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .