The original large continental mass containing all of the present continents prior to separation million of years ago has been named _______.
a - Pangea
b - Gondwanaland
c - Laurasia
d - Subduction
e - transcurrent
a - Pangea
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In the scientific method, a hypothesis is a(n)
a. observation b. measurement c. test d. proposed explanation
Off-road vehicle use contributes to soil problems by
A) loosening soil and changing the hydrology of a site B) polluting soil with vehicle emissions C) changing the local rainfall characteristics D) changing the classification of a soil
________ is the world's most populous nation, home to ________ of the people living on Earth
A) The United States; one-fifth B) China; half C) The United States; half D) India; one-third E) China; one-fifth
A(n) ____________________ is a rise in sea level caused by increased winds and reduced air pressure during a hurricane
Fill in the blank(s) with correct word