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

Author Question: What percentage of marine pollutants originates from human activities on land? a. 25 b. 50 c. 75 ... (Read 66 times)

tiffannnnyyyyyy

  • Hero Member
  • *****
  • Posts: 512
on: Aug 22, 2018

What percentage of marine pollutants originates from human activities on land?
  a. 25
  b. 50
  c. 75
  d. 90



Question 2

Why is the ozone layer important?
  a. It insulates Earth.
  b. It increases the temperature.
  c. It protects Earth from ultraviolet rays.
  d. It stabilizes the atmospheric layers.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

laurnthompson

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: C
A pollutant causes damage by interfering with biological processes of an organism. There are various
rates a pollutant can impact an organism. Information can be found in the section Marine Pollutants
May Be Natural or Human Generated.



Answer to Question 2

ANS: C
If the ozone layer were to weaken, organisms would receive disruptive levels of ultraviolet light. This
would affect the plankton growth in the ocean which also affects every food web in the ocean.
Information can be found in the section Human Activity is Causing Global Oceanic Change.



tiffannnnyyyyyy

  • Member
  • Posts: 512
Reply 2 on: Aug 22, 2018
Gracias!

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Human Cardiovascular System Human Cardiovascular System
Human Ear diagram Human Ear diagram
Human Pathogens Human Pathogens
Structure of the human immunodeficiency virus (HIV). Structure of the human immunodeficiency virus (HIV).
(a) Blue arrows (right side): External components of the innate immune system: human body with skin, ... (a) Blue arrows (right side): External components of the innate immune system: human body with skin, ...
Human Modification: Environmental Issues Human Modification: Environmental Issues
Video: Cortisol (protein catabolism, gluconeogenesis, vasoconstriction & anti-inflammation)

For a complete list of videos, visit our video library