Answer:
• The closing of the frontier
Explanation:
• The closing of the frontier• The closing of the frontier• The closing of the frontier• The closing of the frontier• The closing of the frontier• The closing of the frontier• The closing of the frontier
S because As is not a non-metal
Answer: 49.0 cm^3
Explanation:
1) formula: density = mass / volume
=> volume = mass / density
2) mass (given) = 54.6 g
3) density (given) = 1114 kg / m^3
conversion of units: 1114 kg/ m^3 * 1000 g/kg * 1 m^3 / (1,000,000 cm^3) = 1.114 g/cm^3
4) calculation:
volume = 54.6 g / 1.114 g/cm^3 = 49.0 cm^3
Human use of land has negative impacts. Human activities contribute to the erosion and pollution of beaches. Deforestation of land can also lead to desertification and a loss of biodiversity.
The answer is D. When heated, there is only physical process not chemical process. So the mass of the gas will not change. When heated, according to the thermal expansion, the volume will increase. And the mass is constant, so the density will decrease. Density=Mass/Volume.
