<span>What is the approximate age of our solar system?
</span>b. 4.6 billion years
Explanation:
Segmentation in biology is the division of some animal and plant body plans into a series of repetitive segments. This article focuses on the segmentation of animal body plans, specifically using the examples of the taxa Arthropoda, Chordata.
Stewardship is taking care of something like a large household, the arrangements for a group or the resources of a community. An example of stewardship is the responsibility of managing the staff of an estate. An example of stewardship is the act of making wise use of the natural resources provided by the earth.
I believe there has to be enough activation energy for a reaction to occur in the first place, if that is what you are referencing