Atmospheric nitrogen has to be combined with other elements, or fixed, in order to be used by plants. lightning is one way that nitrogen is fixed. when lightning occurs, the extreme heat breaks the bonds in nitrogen molecules, allowing nitrogen to combine with oxygen and form nitrogen oxides. in what way is most of the nitrogen fixed by lightning made available for use by plants?

rain

Explanation:

The nitrogen is present in the earth atmosphere around 78%. The lightening split the molecules of nitrogen into nitrogen atoms which combines with the oxygen in air. The nitrogen dioxide get mixed with water of rain and nitrates are formed. The nitrates are added to the soil by rain. These nitrates are absorbed by the plants. This helps plants in fixing nitrogen.

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.

i think the answer is c hope this