Question 16 After CO2 is fixed by plants during photosynthesis, the majority of

ID: 2078232 • Letter: Q

Question

Question 16

After CO2 is fixed by plants during photosynthesis, the majority of this carbon is next:

washed to oceans via rivers

respired back to the atmosphere

consumed during combustion

locked in biomass at the Earths surface for perpetuity

Question 17

Which of the following should not be treated as a discrete random variable:

land cover type

stream order

precipitation events per month

soil clay fraction

Question 18

The relative humidity immediately adjacent to an evaporating surface is typically assumed to be:

between 0 and 100%

100%

greater than 100%

Question 19

Which of the following ecosystems would typically have the largest LAI:

deserts

grasslands

forests

urban areas

Question 20

Soil texture proportions are determined after removing which of the following:

clay

silt

sand

gravel

washed to oceans via rivers

respired back to the atmosphere

Question 19:The ecosystems would typically have the largest LAI in

Answer: c) Forests (Because the LAI ranges from 0 to 10 that is from bare ground to dense conifer forests)

Question 20: Soil texture proportions are determined after removing

Answer: d) Gravel

(Because during the soil trexture test after the soil is dried, the particles greater than 2 mm such as gravel and stones, will be removed)