Low dissolved oxygen concentrations that occur in many bodies of water when nutrients stimulate the growth of algae that subsequently die and are decomposed by oxygen-using bacteria.
Answer:
C. A mass of air that is similar in temperature and humidity
Explanation:
An "air mass" refers to a big volume of air that is characterized by having similar or uniform "temperature" and "humidity"<em> (moisture).</em> They come from different source regions, thus they are classified accordingly.
The<em> "cold air masses"</em> come from the <u>polar area</u>s while the<em> "warm air masses"</em> come from the<u> tropical areas.</u> An air mass may cause a storm, for example, when an air mass moves to a new region and confronts another air mass there with a<em> different humidity and temperature</em>.
A topography map provides visual information about elevations, either by color or by circles, so the answers would be:
- areas with mountains
- regions with a high elevation.
The change of elevation (going high or low) would be represented by circles. The closest the circles are to each other, the steeper is the variation.
A topographic map is usually a large-scale map (showing a small area, like your neighbourhood, not a whole country for example). If there are state boundaries or any kind of road passing in that frame, yes they will be shown on the map... but it's not the primarily use of a topographic map.
1. Deflation
2. Loess
4. Kames, esker, drumline, and end moraines
i hope this help sry but i cant explain because i really don't how and i'm in a time test but they do go some answers on quizlet.
