How might a flood affect the population of an area?

Why is terracing used in southeast asian agriculture?

What statement about charlemagne is not true? a. charlemagne's empire collapsed during his rule b. charlemagne sent missionaries throughout europe c. charlemagne encouraged the arts and education d. charlemagne ruled much of western europe a. charlemagne's empire collapsed during his rule

These are the abiotic factor or biotic factors that restricts the numbers, reproduction, or distribution of organisms.