Which of the following definitions of reduction is generally most useful when dealing with ionic materials?
A) gain of electrons
B) gain of hydrogen
C) loss of oxygen
D) None, these are all equally useful.
A
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A rancher overgrazes his land in an area underlain by heavy clay soils and regolith developed from weathering of claystone. After a series of heavy rains small creeks develop deep gullies along their length. A light steady rain develops and continues for several days. What should the rancher be concerned about on his overgrazed lands?
A) slumps along the creeks
B) increasing gully development because of the rain
C) rock avalanche
D) lahars filling cascading down his creeks, wiping out his cattle
Why, according to the text, might participatory development practitioners adopt formalized procedures?
a) Participatory governance can be a bit unruly. b) At times, those who felt they should have participated but did not feel invited to were excluded. c) To keep the agenda public and open to change. d) All of the above.
The carbon cycle is an example of how materials are cycled through ecosystems.
Answer the following statement true (T) or false (F)
____ is a stored water supply in soils that plants can use
a. Gravitational water b. Leached water c. Capillary water d. Caliche