Which characteristic describes an organism of kingdom plantae? a) movement occurs when its food supply runs low. b) sunlight is used to make its own food. c) water is not needed for survival. d) oxygen is needed for breathing.

The correct answer is B) Sunlight is used to make its own food.  

Plants, which are classified as autotrophs because they make their own food, use the process of photosynthesis to create glucose and other similar molecules using sunlight, water, and carbon dioxide.  

Answer A is not correct because plants cannot move, despite their food supply.
Answer C is incorrect because water is necessary for the survival of plants and other living organisms.
Answer D is incorrect because plants do not breathe.  In addition, plants actually give off oxygen through the process of photosynthesis, while humans take it in to breathe.

I hope this helps!

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.