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The factors that can influence the course of a reaction are known as variables and or sources of error. Experiments and testing seek to control these variables, errors and account for them to ensure quality and safety of their results.

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When an experiment shows that two variable are closely related what does the experiment show?

The experiment shows that there is a correlation between the two variables, meaning that as one variable changes, the other variable changes in a consistent way. However, it does not necessarily establish a cause-and-effect relationship between the variables. Further analysis is needed to determine causation.


What are the variables that are not changed in an experiment?

In an experiment, variables that are not changed are called control variables. These variables are kept constant to ensure that any changes observed in the experiment are due to the manipulated variable, or independent variable, and not due to other factors.


Which statement about natural selection is true Overproduction of offspring drives environmental changes. Differential reproduction causes environmental changes. Environmental changes determine which?

The statement "Differential reproduction causes environmental changes" is true. Natural selection favors individuals with traits that are better suited for their environment, leading to the differential reproduction of those individuals. Over time, this process can drive changes in a population's genetic makeup in response to environmental pressures.


What are some possible causes for climate changes in the past?

There have been many events that have led to climatic changes in the past. These events include volcanic eruptions, earthquakes, glaciers, and industrialization.Natural perturbations in Earth's orbit are are some possible causes for climatic changes in the past


What type of changes does erosion cause?

Erosion causes physical changes to the landscape by wearing down rocks and soil through processes like wind, water, or ice. It can also lead to changes in the shape and structure of landforms such as valleys, canyons, and coastlines. Additionally, erosion can contribute to the loss of fertile soil, affecting ecosystems and agricultural productivity.