B3.4 identify the earth’s four spheres and describe the relationship that must exist between these spheres if diversity and sustainability are to be maintained.

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.