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(A) Vacuole
a. be rapidly pumped back from sedimentation tank to aeration tank
c. used as manure
d. Pseudomonas
The ground surface of the forest is called the forest floor. Forest floor is dark in colour due to the presence of humus.
Plant Cell have large _________ than animal cells.
(A) Vacuole
(A) Vacuole
See lessActivated sludge should have the ability to settle quickly so that it can:
a. be rapidly pumped back from sedimentation tank to aeration tank
a. be rapidly pumped back from sedimentation tank to aeration tank
See lessThe residue left after methane production from cattle dung is:
c. used as manure
c. used as manure
See lessWhich one of the following is not a nitrogen-fixing organism?
d. Pseudomonas
d. Pseudomonas
See lessWhat is forest floor?
The ground surface of the forest is called the forest floor. Forest floor is dark in colour due to the presence of humus.
The ground surface of the forest is called the forest floor. Forest floor is dark in colour due to the presence of humus.
See less