Answer:
PVC is a durable material that's resistant to weathering, which is why it's so often used in building and construction. It's also resistant to chemicals and doesn't conduct electricity, making it crucial for use in high-tech applications, such as wire and cable.
Explanation:
Answer:
The first profession that existed in the world, was that of cook.
According to studies, approximately 1.9 million years ago, when Homo erectus dominated the soil of this planet, the need arose to cook and prepare the foods that were found.
The profession of cook also emerged before the craft of farming, since these groups lived like nomads and did not settle permanently in a single place.
The cook, therefore, was the person in the group who was in charge of one of the most important tasks. Their work was rewarded by the right to receive food, protection and shelter.
The researchers were only able to reach these conclusions, after finding specific kitchen utensils close to fossils of that time.
Cooking was considered the first profession to exist, since hunting and collecting food are habits that we can find among other primates and mammals in nature.
So this was the first exclusively human activity that can be considered a trade, a profession.
Answer:
I'm almost positive its B
Explanation:
it helped projectors
it is the 9th episode i believe. sorry if im wrong.
