Which sentence should the writer insert after sentence 1 to provide the most relevant and useful background
information for readers?
O The idea of raising chickens and eating fresh eggs
every day appeals to some people.
O Imagine waking up in a busy city to the sound of
roosters crowing a "good morning."
O In fact, a recent review of urban poultry ordinances in
the United States found that 93 percent of the 150
most populous US cities allow backyard poultry.
There are many different chicken breeds available for
backyard farmers including common Leghorns or
Rhode Island Reds as well as more exotic breeds
such as the Jersey Giant.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o

4d^55s^1 ( third choice)