A student uses red litmus paper to test the pH value of different solutions. Which would result in a color change of the litmus paper? Check all that apply.

A: soap
B: biodiesel
C: drain cleaner
D: antifreeze
E: vinegar

Fitness is the ability to perform only very light levels of physical activity.

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Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.

This  kingdom  is  made  up of species that  do  not really easily fit into other kingdoms such as the plant, animal,and  fungi  kingdom. some protists, such as the paramecium  and  amoeba, feed  on  other  organisms  while others such as algae are able to  make their own food  through the process of photosynthesis.