Answer: a)Copper and tin
Explanation: Copper and tin came into use at very early ages in the form of utensils, ornament etc. They were discovered in a way that it is possible for the people of early ages to extract these metals and melt them to give it some kind of shapes and utilize it for their daily living.People also started using these metals in the form of alloys as well which expanded the used of metals like copper, tin , bronze etc. Thus, correct option is copper and tin.
lithosphere- rocks and crust, 300 to 500 °C
mantle-silicate rocks rich in magnesium and iron,500 to 900 °C
outer core- iron and nickel, along with small amounts of other dense elements like gold, platinum, and uranium. 4400 to 6100 °C
inner core-iron, 5982°C
People live in mud or stone one-room houses
Explanation:
because in rural village we cannot find it
I want to say Los Angeles.
Answer:
The building materials are influenced by local resources.
Explanation:
The farmers built structure based on the material obtainable in their area.Farmers having forest in their region built with wood obtained in that region,whereas those in the grassland used sod to build houses.
