The amount of air in a room never changes:
Explanation:
From what I see, each 10°C is a 1000m. So 3000m is 30°C
If the temperatures are increasing in a mountainous region, in order to be sure in that, the evidence can simply be obtained by the vegetation. The mountains tend to be warmer at the lower parts, and as the elevation increases, the temperature decreases. If it is a higher mountain, then we will see that there is certain type of vegetation in the lower parts, above it a belt of another vegetation type, above that one there's usually a belt of grasses, and the highest parts are usually with little to no vegetation. If the temperature increases though, then the vegetation from the bottom will start moving upwards, occupying larger portion, the second layer will move upwards as well, and the grasses will come around the top part of the mountain, with the barren part disappearing from the scene.
China believes that building the Three Gorges Dam was an absolute necessity in terms of energy production because it can generate hydro-electric energy from Yangtze River. This hydro-electric-producing dam would generate less pollution than coal-fire generation and would slow the river from overflowing and destroying nearby villages.
Answer:
Explanation:
The Earth is worse because of mining and this is because mining usually destroys ecosystems such as forests, rivers and makes the land unlivable for animals and humans alike. But reclamation mitigates this damage and after the mining is done they restore as much of the living conditions to the land or water as possible in order for the life to resume there or for humans to live there.
