Calcium content: Calcium carbonate is the most prevalent calcium supplement in the market. It provides more elemental calcium than calcium citrate, so you may not need to take as many pills. As in the example explained in the elemental calcium section, a 500 mg calcium carbonate provides 200 mg elemental calcium.
In the Earth's atmosphere, temperature varies greatly at different heights relative to the Earth 's surface. The coldest temperatures lie near the mesopause, an area approximately 85 km (53 mi) to 100 km (62 mi) above the surface.n the Earth's atmosphere, temperature varies greatly at different heights relative to the Earth 's surface. The coldest temperatures lie near the mesopause, an area approximately 85 km (53 mi) to 100 km (62 mi) above the surface.
The stratosphere's temperature increases as altitude increases. The  mesosphere's temperature decreases as it's altitude increases.here is decrease of temperature with a mean rate of about 6.40C per km. it is from 0 to 15 kilometers. it has more air and has many clouds. Stratosphere. No visible weather phenomena take place in this layer. In this layer the temperature does not change with altitude.er. stratosphere. it is from 15 km to 50 km.