<span>The correct answer is a. the overuse of fertilizer lead to reduced crop yields over time. This was unexpected because it is common for fertilizers to increase the yields and the quality of the product, but what happens over time is the opposite so it can be said that it's an unexpected consequence.</span>
I think that these are the answers
is the least dense planet in the solar system
has captured asteroids in its orbit
is the most massive planet in the solar system
1) pathogen
2) viruses
Some bacteria are not harmful to your body hence not all of them are pathogens
Answer:
When CO2 is breathed into the lungs, it dissolves in the water there, diffuses across the alveolar-capillary membrane, and enters the bloodstream. As it combines with water, it forms carbonic acid, making the blood acidic. So CO2 in the bloodstream lowers the blood pH.