Scientific inquiry is not easy to implement because of several factors. one of the problems is taking into consideration all (data, variables, observations) and deciding which ones to standardize. another problem investigators face during experimentation lies in , observing, interpreting) the evidence.

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

explanation:

amber has allowed scientists to study dna that has been preserved over millions of years.