3. A microscope has a field diameter of 2,000 microns under a total low power magnification of 100X. This microscope has a 10X power ocular. Given this information, answer the following questions that appear below.
a. What is the power of the low power objective lens?
b. If a cell which is observed takes up approximately 1/6 of the field of view under low power,
what is its approximate length?
c. If we now switch to high power using the 60 X objective lens, what is the magnification of
this microscope?
d. Under the high power magnification you calculated in part (c.) above, what is the
approximate length of our cell under high power?
About how much of the high power field diameter (fractional amount) does this cell occupy?

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

D. pray lands grasslands swamps

The answer is c water is the solvent and salt is the solvent