Which of the Following Is True

question 5

Multiple Choice

Which of the following is true?

• A)both the direct and indirect costs of soil erosion is estimated at hundreds of thousands of dollars worldwide.
• B)soil that has eroded could take decades to be replaced.
• C)loss of soil,combined with exponential population growth,could lead to serious food shortages.
• D)in most of the densely inhabited regions of the world,soil erosion is not a problem.
• E)moving from west to east across Canada,the losses of organic material in the soil decrease.

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Definitions:

Mutations

Permanent alterations in genes or chromosomes that may produce harmful characteristics.

Heritability

The proportion of variation in a trait among individuals that can be attributed to genetic variations.

Monozygotic

Pertaining to twins who are genetically identical because they were formed from a single fertilized egg that split into two.

Dizygotic

Refers to twins that are developed from two separate fertilized eggs, also known as fraternal twins, resulting in siblings that are genetically similar but not identical.