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Environmental Science Exam 2024 Questions and Answers Latest (2024 / 2025) (Verified Answers)
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Environmental Science Exam 2024 Questions and Answers Latest (2024 / 2025) (Verified Answers)
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Environmental Science.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/Environmental%2Environmental Science
1. observation: the first step in the experimental method and is a piece of informa-
tion we gather using our senses-sight, hearing, smell, and touch.
2. experimental method: a method that consists of a series of steps that scientists
worldwide use to identify and answer questions.
3. hypothesis: the second step in the experimental method and is a testable idea or
explanation that leads to a scientific investigation.
4. prediction: a logical statement about what will happen if the hypothesis is correct.
5. experiment: the third step in the experimental group and is a procedure designed to
test a hypothesis under controlled characteristics.
6. variable: is the factor of interest.
7. experimental group: the group that receives the experimental treatment.
8. control group: the group that does not receive the experimental treatment.
9. data: the information that a scientist gathers during an an experiment, which is
often in numeric form.
10. organizing and analyzing data: the fourth step in the experimental method.
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11. bar graph: one common type of graph and are useful for comparing data for
several things in one graph.
12. drawing conclusions: the fifth step in the experimental method.
13. repeating experiments: the sixth step in the experimental method.
14. communicating results: the last step in the experimental method.
15. correlations: the linear dependence between two variables. A mutual relation-
ship or connection between two or more things. A positive correlation indicates the
extent to which the variables increases or decreases. A negative correlation indicates
the extent to which one variable increases as the other decreases.
16. statistics: the collection and classification of data that are in the form of num-
bers.
17. mean: the number obtained by adding the data for a characteristic and dividing
this sum by the number of individuals.
18. distribution: is the relative arrangement of the members of a statistical popula-
tion.
19. probability: the chance that somethings will happen.
20. sample: a group of individuals or events selected to represent the population.
21. risk: the probability of an unwanted outcome.
22. models: representations of objects or systems.
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23. physical models: 3-D models that you can touch.
24. graphical models: maps and charts are examples of graphical models.
25. conceptual model: a verbal or graphical explanation of how a system work or is
organized.
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