Answer:
Water sample showing pink/purple color is an error.
Explanation:
Biuret is a blue color reagent that changes its color to pink/purple whenever it detects protein in a sample. Water don't contain proteins so it should not show pink/purple color instead it should maintain the blue color. Food items generally contain proteins so it show pink/purple color but it showed blue color.
Error might have caused by wrong marking of the samples, test tube marked with Water might contain a mystery food while Mystery food tube might contain water.
Answer:
Ask a question
preform research
establish your hypothesis
test your hypothesis
make an observation
analyze results and draw a conclusion
present the findings
Answer is A. It cant be B because they are to close together and it cant be C because some of the seeds are also to close together. Hope this helps!! :)
Answer:
A. The cryosphere is part of the hydrosphere
Explanation:
hope it helps :)
Brainliest pls? Have a good day/night
Answer:
A) Electrical energy flowing into the fan from the wall outlet
Explanation:
