Anatural levee is
an erosional feature perpendicular to the stream channel
a depositional feature parallel to the stream channel
a depositional feature perpendicular to the stream channel
an erosional feature parallel to the stream channel

Answer;

-A depositional feature parallel to the stream channel

A natural levee is a depositional feature parallel to the stream channel

Explanation;

-A levee is a natural or artificial wall that blocks water from going where we don’t want it to go. It may be used to increase available land for habitation or divert a body of water so the fertile soil of a river or sea bed may be used for agriculture. It also prevents rivers from flooding cities in a storm surge.

-The natural movement of a body of water pushes sediment to the side, creating a natural levee. The banks of a river are often slightly elevated from the river bed. The banks form levees made of sediment, silt, and other materials pushed aside by the flowing water.

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.