This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Beginning around 250 million years ago, the accumulation of dead algae led to the formation of a(n) ... (Read 64 times)

aabwk4

  • Hero Member
  • *****
  • Posts: 593
on: Jul 21, 2018
Beginning around 250 million years ago, the accumulation of dead algae led to the formation of a(n) ____ zone along the bottom of coastal waters.
 
 

a. aerobic c. benthic
  b. anoxic d. aphotic



Question 2

Kerosene is a liquid hydrocarbon created from the distillation of crude oil and it has a condensation point of around ____ degrees Fahrenheit.
 
 

a. 200 c. 600
  b. 400 d. 800



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Liamb2179

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jul 21, 2018
Answer to Question 1

B

Answer to Question 2

B


aabwk4

  • Member
  • Posts: 593
Reply 2 on: Jul 21, 2018
Great answer, keep it coming :)

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Possible Earth 5 billion years from now Possible Earth 5 billion years from now
Varicosis. (a) Varicose veins develop due to the failure of valves in the superficial veins of the l Varicosis. (a) Varicose veins develop due to the failure of valves in the superficial veins of the l
Cone of Depression Formation Cone of Depression Formation
Bone Formation Bone Formation
Sabrina's Fabric Land bought $5,000 of equipment at the beginning of 2015. Amortization ... Sabrina's Fabric Land bought $5,000 of equipment at the beginning of 2015. Amortization ...
Video: Sister chromatids of a metaphase chromosome animation

For a complete list of videos, visit our video library