Answer:
The correct answer is A. dopamine.
Explanation:
Stimulants are believed to work by increasing dopamine levels in the brain. Dopamine is a neurotransmitter associated with motivation, pleasure, attention, and movement. For many people with ADHD, stimulant medications boost concentration and focus while reducing hyperactive and impulsive behaviors.
Primary succession occurs when vegetation occurs in a place for the very first time, i.e there was no vegetation there before.
The causes are:
-Erosion
-Physiography
-Elevation
Hmm i think it might be a <span>covalent </span>bond
I hope you have a wonderful day! And hope this helps! :D
<em>The two main process by which plant cells absorb, release, and use energy are Photosynthesis and respiration.</em>
As a greenhouse gas that absorbs heat, CO2 raises the temperature of the atmosphere. We refer to this as global warming. The glaciers will melt more quickly as the world's temperature rises, raising sea levels and bringing on disaster. More power is consumed for air conditioning as the temperature rises, which further raises the air's CO2 level.
Since coal is the primary fuel utilized in the creation of power. This creates a vicious cycle.
