Write the plural possessive form of each noun for the first three questions .
1. friend
2. box
3. house
rewrite the possessive noun where necessary for numbers 4 and
5 . if the noun is already correct, write correct.
4. many people were astonished by (scientists’) discoveries in the twentieth century.
5. alternative energy sources had to be developed to satisfy (peoples’) need for electrical power.

However, the idea of real-life people living in what would become the united states for thousands of years before columbus ever left spain never dawned on me. what would be the best way to revise this sentence for greater clarity? a) however, the fact that columbus left spain thousands of years after people settled what would become the united states never dawned on me. b) it never dawned on me, however, the idea of real-life people living in what would become the united states for thousands of years before columbus ever left spain. c) however, the fact that people were already living in what would become the united states for thousands of years before columbus ever left spain never dawned on me. d) however, the idea never dawned on me that long before columbus ever left spain, real-life people lived for thousands of years in what would become the united states.

You need to start an experiment and the instructions are to mix 2 g of sodium bicarbonate with 50 ml of distilled water and then mix the solution. describe what lab apparatus you would use and what safety precautions you must observe when completing this experiment.

Frankenstein: what attitudes toward education are expressed by shelley in her description of victor’s upbringing in chapter 1? what, for example, motivates victor and elizabeth to study/practice?