1395667

1. The range of difference in water potentials between soil and
the atmosphere for a plant growing in an arid environment would
be:

A. 50 to 150 MPa

B. 0 to 5 MPa

C. 5 to 150 MPa

D. 0.01 to 0.75 MPa

E. 0.051 to 0.5 MPa

F. 10 to 50 MPa

2. The range in difference in water potentials between a plant
and the atmosphere for a plant growing in a humid tropical forest
environment would be:

A. 2.5 to 7 MPa

B. 5 to 150 MPa

C. 10 to 100 MPa

D. 0.01 to 0.10 MPa

E. 10 to 50 MPa

F. 1.5 to 2 MPa