During certain times of the year, the gulf of mexico experiences hypoxic conditions (oxygen depletion). this is known as a dead zone. what is responsible for the emergence of dead zones in the gulf of mexico? 1points a fertilizer runoff from agriculture has polluted the water so much that there is more chemicals dissolved in the water than oxygen. b algal blooms from fertilizer runoff eventually die and decompose. when they decompose, the decomposers use much of the oxygen in the water. c high levels of trash pollution absorb dissolved oxygen in the water creating depleted oxygen levels. d the water that feeds into the gulf from the mississippi river has less oxygen in it than the water in the gulf, resulting in areas with less oxygen.

answer; ///i believe the answer is (antioxidant);

c is the correct answer hope this !

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'