Which type of wetland restoration project involves making a deep cut in a riverbank and installing a gated structure to allow for the controlled flow of sediment-rich water from the lower
part of the river to another area?
A. a shoreline stabilization project
B. a sediment and nutrient trapping project
C. a sediment diversion project
D. a freshwater diversion project

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Explain why biological control methods are generally environmentally superior to chemical pest control methods.