Rebecca ate a meal of oats before seeing her doctor. Oats are made of mostly starch molecules. Rebecca feels tired, so her doctor gave her a test and found that Rebecca's cells contained glucose molecules, but they did not contain enough oxygen molecules. Does this explain why Rebecca feels tired? *

Answers are 1,2,4 its correct on edgenuity.

Ahigh energy (high speed) particle (alpha or beta or neutron) are shot at the target;

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m