Population trends <span>refers to changes over time and can include changes in ranging behaviour</span>
Increase in floods, by process of elimination this appears to be best option. With fewer trees the speeds of water and run off increase which increases floods.
People with a diagnosis of bipolar II disorder will have had at least one hypomanic episode, which preceded or followed a major depressive episode. People with major depressive disorder do not experience any extreme, elevated feelings that doctors would classify as mania or hypomania
False there are plent of examples on google examples of acronyms.