Back then people doesn’t use tools with a lot of mechanism but as we reach the modernization a lot of people created an easier way of agricultural farming by using machines that works on it’s own without any mankind’s hard-work.
Answer: It is a secondary source.
Explanation: It uses a primary source as a subject.
Answer:
They have the same amount of thermal energy.
Explanation:
They are both at room temperature.
Several things developed in the 50's:
Credit cards
Velcro
Color TV
TV dinners
Microwaves
Birth control pills
Ultra sounds
Bubble wrap
Seat belts
Automatic doors
Maybe this gives you an idea of what was going on then, hope it helps.