Which of the following is a hollow steel tube with a heavy weight on top that is to collect sediment samples?

A) Dredge
B) Gravity corer
C) Long line
D) Rotary corer
E) Seiche disk


B

Environmental & Atmospheric Sciences

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What is the smallest form of plankton?

a. Microplankton b. Nanoplankton c. Femtoplankton d. Picoplankton

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Which of the following has a negative radiative forcing (i.e. cools the planet)?

A) nitrous oxides (N2O) B) carbon dioxide (CO2) C) Trichlorodifluoromethane (CFC-11) D) methane (CH4 ) E) stratospheric ozone (O3)

Environmental & Atmospheric Sciences

The percentage of incident light radiation reflected back to space is termed albedo.

a. true b. false

Environmental & Atmospheric Sciences

Photosynthetic autotrophs changed the composition of the atmosphere during the oxygen revolution

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences