Ponds are .
a. typically larger than lakes
b. able to develop self-contained ecosystems
c. distinguished by easily observed currents
d. another name for stream pools

Effective charts and graphs include all of the following except 1. simple, meaningful, attractive design 2. accurate information 3.at least five different colors 5.clear presentation of information

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration

Which of the following statement about women in the workforce is false