Have an account?
Skip to Content
5 questions
Show Answers
See Preview
- Multiple ChoicePlease save your changes before editing any questions.
Great quantities of water circulate either temporarily ________ in a concentrated flow of streams and rivers.
and permanent
and permanently
or permanent
or permanently
- Multiple ChoicePlease save your changes before editing any questions.
Astronauts are expected to be capable of operating at peak efficiency in outer space in both normal _________ emergency situations.
nor
and
or
but also
- Multiple ChoicePlease save your changes before editing any questions.
An astronomical observatory is a station--either a building _________ a group of building--used for the study of the heavens.
or
and
but also
nor
- Multiple ChoicePlease save your changes before editing any questions.
In commensalism, tiny plants live out their lives in the human body and derive their food from it, but probably neither harm nor _______ the host in any way.
to help
helping
helped
help
- Multiple ChoicePlease save your changes before editing any questions.
Plants require both large amounts of carbon, oxygen and hydrogen ____ smaller quantities of phosphorus, potassium and calcium.
and
or
nor
but also