Answer:
Option D
Fish
Explanation:
The characteristics of index fossil is distinctive, widespread, abundant, and limited in geologic time. Ammonites fit these demands well and are the best-known fossils that have been widely used for this.
Thus, The answer is Fish
The Hadean era was before rocks were formed so I’d say b) . Hope this helps :)
Fallow land is all arable land either included in the crop rotation system or maintained in good agricultural and environmental condition (GAEC), whether worked or not, but which will not be harvested for the duration of a crop year.
Answer:
1) Desert, 2) Tundra, 3) Savanna, and 4) the Forests
Explanation:
Both are mammals
Both have fins.
