The correct answer is the last one: waxing crescent.
<u>Answer:</u>
Alluvial fans are evidence that the Death Valley is a tectonically active region.
<u>Explanation:</u>
- Alluvial fans can be only formed by the slow and gradual depositional action of a river.
- But for an alluvial to be formed, it is primarily necessary for the river to continuously carry and deposit sediments for a long period of time.
- The supply of sediments done by the Death Valley in California provides evidence that it is a tectonically active region.
As published in EPA's national water quality inventory report,
40 Percent of rivers and 46 % of lake are considered to be plluted. these sources, called the surface water are vulnerable to pollution discharged of pipesand runof pollutants washing off the lands.
These sources are extremely unsafe to drink and to swim in
Answer:
THE ANSWER IS B) CLIMATOLOGY
