Answer:
<u>Instead of Helium and Hydrogen there are heavier elements in inner planets like Nitrogen and oxygen.</u>
Explanation:
- As the inner planets like Mercury, Venus and Mars and earth have a solid surface which is separated by the Sharpe atmosphere, and their gravity is too low to hold these light gases.
- Uranus is primarily composed of gases and ice of which 83% is hydrogen and 15% helium and rest are trace gases. As in the early composition of the atmosphere, the inner planets like the earth had a solid atmosphere composed of solid silicates elements like magnesium, iron, calcium, and potassium.
- As the earth has a highly unstable atmosphere only carbon, nitrogen and oxygen combined in lightning occur. And planet mercury has no atmosphere thus gravity is too low to hold any gas.
Answer:
Over the last two centuries the dipole strength has been decreasing at a rate of about 6.3% per century. At this rate of decrease, the field would be negligible in about 1600 years. However, this strength is about average for the last 7 thousand years, and the current rate of change is not unusual.
Does the map scale have distances on it or is it a different scale.
It most likely shows distances so I would go with C.
Im not sure but probably.
Explanation:
The dry regions or deserts found in and about 30° north and south of the equator are called the subtropical deserts. They are predominantly found in between 15° to 30° north and south of the equator where it is called the Tropic of Cancer in the north and Tropic of capricorn in the south of the equator. In these regions the air masses travels in the circular patterns, which is the main cause of hot and dryness in these regions.
Near the equator the hot air rises and as it raises it cools down and drops its moisture in the form of rain near the equator. Thus now the drier air moves away from the equator towards the Tropics of cancer and the tropic of capricorn and thus it descends down and becomes hot again. As the air lowers down it becomes difficult to form cloud and thus there is little rainfall in these area making it hot and dry. Thus they formed subtropical deserts.
