According to the dichotomous key, organism 4 is a(n)

yup! you are correct it is b.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.

syria

tens of thousands of people were killed in as it’s longtime leader attempted to stay in power.