What Explanation Do Scientists Give for Decline in Amphibians in Pristine

question 43

Multiple Choice

What explanation do scientists give for decline in amphibians in pristine habitats and little contact with humans?

• A)Pollution
• B)Fungal infection
• C)Habitat loss
• D)Over harvesting
• E)Competition with exotic species

---

Definitions:

Tax Rate Structure

The dividing of taxable income into sections (brackets), each of which is taxed at a different rate.

Progressive

A term used to describe a tax system where the tax rate increases as the taxable income increases.

Proportional

A concept where elements are in a constant relationship in terms of size, amount, or number relative to a whole.

Regressive

Describing a tax system where the tax rate decreases as the taxpayer’s income increases, placing a larger burden on lower-income individuals.