I believe the answer is descriptive science
Descriptive research aim to produce a data that describe a condition. It doesn't trying to analyze the data and find correlation or causation. In this case, the scientist trying to make catalog of new species. The result should be a list that could describe the species of the species. There is no hypothesis or variable in this research.
I'm not sure of the options listed but: clients typically are obese and clients refrain from purging behaviors.
Explanation:
Sediment discharge was historically approximately 270 million cubic meters/year of suspended load and 130 million cubic meters/year of bedload. This has decreased 80% since 1850 and can be divided into three periods: historical period (pre 1900), pre-dam period (1932-1952), and post dam (1963-1982). Suspended sediment loads declined 43% between the historical and pre-dam and 51% from pre-dam to post-dam periods. The size of sediment also decreased drastically including a 72% decrease in the sand fraction. Most of this is due to dams on the tributaries acting as sediment traps primarily for the coarser sediments. Large-scale land clearing for agriculture contributed to increased sediment loads in the historic period.
