answer
D
explanation
because for to become a scientific theory it needs evidence before it
Coughing and sneezing are reflexes of the body
that prevent bacteria to further damage the organs inside the body. It helps in
keeping the airways clear and in healing. The two sources or passages of these
natural reflexes are the nose and the mouth.
<span>
Inside the nose, there are nasal hairs present to
filter the oxygen or air that we breathe in. These are called Cilia, these are
protective mechanisms of the body that trap dirt that cannot pass through the
respiratory system. Sneezing is a natural reflex that clears the nose passages
from obstructions that might affect the lungs. Coughing is also a natural
reflex that is generated by an irritation in the tonsils, this condition is
commonly viral. The tonsils are responsible for protecting the passage of dirty
air into the lungs.</span>
Answer:
The Causes of Water Pollution
- Industrial Waste.
- Marine Dumping.
- Sewage and Wastewater.
- Oil Leaks and Spills.
- Agriculture.
- Global Warming.
- Radioactive Waste.
Solutions
- Wastewater treatment.
- Green agriculture.
- Stormwater management.
- Air pollution prevention.
- Plastic waste reduction.
- Water conservation.
Explanation:
Answer:
The Earth is made up of many rocky layers. .
Explanation:
The solid, outer layer is called the crust. Below the crust lies a layer of very hot, almost solid rock called the mantle
