Scientists use critical thinking skills throughout the process of research or experimentation . a student notices that their energy level always seems to decrease when they drink soda but they seem to have more energy when they don't drink soda . the student decides to contact an experiment to determine if their soda intake really does have an effect on their energy level what critical thinking step has the students just completed in the situation described above ? a. asking a question ❓b. evaluating a promotional claim c. adjusting a conclusion d. determining a logical conclusion

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos