Acid rain can be very harmful, mildly harmful, or not harmful at all. It mainly depends on the density of the rain, and how bad the current air pollution in the area is. Also, it depends on how often the area gets acid rain. The first few times an area gets acid rain, it's nearly harmless. Then, the next few it can be very dangerous, but eventually gets weaker over time. More air polluted areas are more likely to get much more harmful acid rain.
Summary: Acid rain is usually mildly harmful, mostly only harmful to infrastructures.<span />
The major difference between viruses and living things are that most living things can reproduce independently, whereas viruses must infect living cells in order to reproduce. The correct answer is C.
Multicellular organisms require a lot of energy and resources to survive.
Unicellular organisms, on the other hand, require just the basic necessities. On top of that, unicellular organisms don't require a long time to reproduce as multicellular organisms do.
Thus, multicellular organisms are at a disadvantage because they require more energy, sources, and essentially time.
Hope this helps!
Answer:
B) Sea level rises as Earth becomes warmer and glaciers melt.
The brain region identified lighting up during an fMRI scan in a patient with obsessive-compulsive disorder is the anterior cingulate cortex. The anterior cingulate cortex is part of the limbic system and is responsible for the emotion formation, memory, processing, compulsions and obsessions, and others.
