Answer:
Looks like school work.. sorry Im not learning this.. I think its A
Explanation:
Answer:
The atomic weight of an atom is the sum of its protons and neutrons
Explanation:
The weight of an atom is dominated by the amount of matter contained in the dense and tiny nucleus of an atom. In the nucleus, protons and neutrons are found. Protons are massive nuclear particles that are positively charge. Neutrons are also massive and they carry no charges.
The atomic weight is given as the sum of the protons and neutrons. Electrons have little to no weight.
1940s. In the United States, where Ten Thousand Villages (formerly Self Help Crafts) began buying needlework from Puerto Rico in 1946, and SERRV began to trade with poor communities in the South in the late 1940s. The first formal “Fair Trade” shop which sold these and other items opened in 1958 in the USA.
I’d say C.
A doesn’t make sense, they definitely could’ve domesticated animals in that time.
B doesn’t make sense either, they could’ve easily seen smoke signals, the sky wasn’t filled with them often.
C is just a weird answer. I doubt they were “passive observers” but probably the best answer to the question.
D doesn’t add up because they definitely needed agriculture/food surpluses. They were always hunting, they obviously ran out of food rather quickly.
So C is the answer.
