Economic Threshold P2
Insect Density
P1 = Population 1
Pest Population
P2 - Population 2
P3 Population 3
Time
a. A farmer at Dormaa intends to spend GHS 1,500 to control pests on his 40-acre
maize farm, as a crop advisor, at what population density would you advise the
farmer to apply control measures? P1 or P2 or P3? Explain your answer,
(5 marks)
b. From the graph, there were drops in the population density. Explain two factors
that may attribute to the drop in population density with respect to time. ​

A) it will stay on the table

Ibelieve its b but u might have to

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.