Answer: Megacities can influence environment and health concerns.
Explanation:
1. The megacities can pollute the environment by causing air, water, and soil pollution due to rapid industrialization in these cities leaking air pollution and chemical discharge in water and soil contaminating them. This way the environment is affected also the human and animals are prone to respiratory and digestive problems and diseases.
2. The megacities are source of noise pollution from different sources producing undesirable sound like vehicle honking, live concerts, and machines from industry and others these can affect the hearing ability of human and animals also can be responsible for hypertension, cardiac arrest, and stress in humans.
3. The megacities are affected by overpopulation which can affect the environment as resources like water, air, minerals will deplete from these cities and this can affect the survivor of human kind who are not able to meet the resource demand.
Answer: C
Explanation:
Cultural diffusion is the spread of ideas and customs from one culture to the next
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:
The tides are controlled by the Moon's gravitational pull.
Explanation:
An ocean motion that is controlled by the Moon's gravitational pull is the tides. The tides occur because the Moon manages to pull the water on Earth's surface toward it, so the water level gets higher on the side of Earth that's facing the Moon and on the opposite side. The water on the sides of Earth doesn't get pulled, but because the water is pulled toward the other sides, the water there retracts and the water level drops.
The tides vary in their levels, depending on the intensity of the gravitational pull from the Moon. This results in extremely high tides and extremely low tides in some parts of the month, or in very small high and low tides in other parts of the month. The tides have good and bad aspects about them, and humans have tried their best to use the good sides of them in full.
