Which of the following is most likely to cause increase in a predator population

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

i believe the answer would be b. hope it : )

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.