A higher 16O to 18O ratio in oceans indicates a ________ climate, whereas a lower 16O to 18O ratio indicates a ________ climate
A) colder; warmer
B) warmer; colder
C) cooler; cold
D) warmer; hot
E) cold; hot
B
Environmental & Atmospheric Sciences
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Nellie Newton, of mass 30 kg, at rest on friction-free roller blades pushes away 25-kg Jake, also on roller blades, at 1 m/s. Nellie's recoil speed is
A. 0.55 m/s. B. 1.2 m/s. C. 0.45 m/s. D. 0.83 m/s.
Environmental & Atmospheric Sciences
Which of the following terms describes the wind belt that predominates across Canada?
A. westerlies B. northerlies C. trades D. easterlies
Environmental & Atmospheric Sciences
What is the speed of a 4-kg block when its momentum is 12 kg?m/s?
A. 4 m/s. B. 3 m/s. C. 48 m/s. D. 12 m/s.
Environmental & Atmospheric Sciences
What renewable energy source provides Brazil, Venezuela, and Norway with more than 2/3 of the energy for their electricity needs?
A) nuclear B) biomass C) solar D) wind E) hydropower
Environmental & Atmospheric Sciences