Dates on zircons from Western Australia suggest that the oldest crustal rocks are more than 4 billion
years old. Indicate whether the statement is true or false.
T
Environmental & Atmospheric Sciences
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Frost wedging is most likely to happen in:
a) Regions with snow in winter and rain in summer b) Arctic regions with year round snow on the ground c) Tropical regions with hot and humid climates d) Deserts with dry and hot climates e) None of the above
Environmental & Atmospheric Sciences
Soil cohesion is enhanced by the presence of
A) gravel and sand particles B) clay and silt particles C) subsurface water D) organic matter
Environmental & Atmospheric Sciences
The Earth's rotation is gradually slowing
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
As a region, Africa has the fastest growing population and the youngest population with over 40% of the population under age 15
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences