1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natasha_Volkova [10]
3 years ago
9

Which of the following is not essential in the formation of black shale units?

Geography
1 answer:
melamori03 [73]3 years ago
6 0

Answer:

B. Aerobic bottom water

D. High organic productivity in the overlying oxygen rich water

Explanation:

A Shale is a sedimentary rock usually formed from silt and clay-size mineral. There are different colors of Shale. The Black Shale is formed under anaerobic conditions. This means that oxygen is deficient in the water where the Shale forms.

A little amount of organic materials is required for the formation of Black Shale and because Black Shale is formed in an environment lacking oxygen, an oxygen-rich water would not be necessary for its growth. Sediments are necessary in the formation of Black Shale.

You might be interested in
Uses of important types of maps
Masteriza [31]
-to find where you are
-to find out where you are going
-to find the direction at which you are heading
-to find alternative routes to your set destination

5 0
3 years ago
Which characteristics describe deep ocean currents? Check all that apply.
AnnZ [28]

Answer:

Options (1), (3), (4) and (5)

Explanation:

The deep ocean water refers to the water that is present at the bottom of the ocean. This deep water is highly dense, and are rich in essential nutrients including oxygen. Sunlight cannot penetrate into the deeper layer, as a result of which these water remains much colder and moves at a much slower rate in comparison to the surface waves. These deep ocean currents are generated by the density differences due to two factors namely, temperature and salinity.

These currents are moved from the equatorial region to the poles and again comes back from the poles to the equator, forming a circular pattern. This circulation of water is responsible for the various climatic conditions that occur at different places.

Thus, the correct answers are mentioned above.

4 0
3 years ago
Alcohol, when ingested by a pregnant woman, can cause birth defects in the unborn fetus. Alcohol is an example of a...
Aliun [14]
The answer is #1 teratogen
5 0
2 years ago
Please help asap!
Leno4ka [110]

Answer:

(C) Temperature, pressure, and the original type of rock.

Explanation:

5 0
3 years ago
Read 2 more answers
Brainiest for whoever answer correctly.
olga2289 [7]

Answer:

B. Death Valley, CA

Explanation:

Here are the elevations of each location:

Key West, Florida 18 feet

Death Valley, California -282.2 feet

Seattle, Washington 175 feet

Corpus Christi, Texas 7 feet

Because Death Valley sits at -282.2 feet below sea level, the lowest elevation, <u>B is the answer</u>.

Tip: Without knowing the exact elevations of each location, we could assume that a <em>valley</em> would be lowest.

8 0
3 years ago
Other questions:
  • Matt called a cab company and asked to be picked up two blockes south of dupont circle in washington dc .which concept best rpre
    7·2 answers
  • The highest point in the Maldives is
    12·1 answer
  • Material moves in one large mass<br><br> a) slump<br> b) mudflow<br> c)landslide<br> d) creep
    11·2 answers
  • Clouds will form when warm air with water vapor rises and expands, causing it to ______________________________ into clouds.
    15·1 answer
  • What is the surface area of a sphere with a diameter of 8 centimeters
    5·1 answer
  • You are stuck in a room after a major earthquake and firefighters are looking for you. There is only one window open and it's ve
    15·1 answer
  • The term 'state," when used in the study of world geography, would most likely be associated with which of the following
    9·2 answers
  • Which phrase is an example of macroeconomics?
    11·1 answer
  • Are zebras really a hybrid?
    8·2 answers
  • How many moles are in 1.78 x 10 22 atoms of potassium?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!