In Hard Times, by Charles Dickens, Sissy's father abandons her, yet she continues to hope for his return. What is Dickens revealing through this characterization of Sissy?
o that everyone should have hope
that hope is futile
O that hope is ridiculous
O that hope is essential for humans

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.

answer; i believe the correct answer to the above question is ( friction)