Answer:
Illiteracy is the biggest reason behind all of the social problems.
Unwanted social divisions like religion,caste etc ,often becomes the reason behind social problems.
Poverty is also a major reason.
Lack of proper leadership is also becoming a major factor for these social problems.
Explanation:
Answer:
a. She smiles and begins to giggle.
A simile can be found when using "like" or "as" between two things. Example: I'm as happy as a clown.
Your question would be a metaphor. Both things are being compared to a science expieriment, probably meaning that they need to have an outcome, but it isn't known for sure if it will be a good or bad outcome.
Things like this can be taken many ways, so if you think something else, I'm sure it would work as well.
