Answer:B
Explanation:
Red star had a lower temperature than yellow-white therefore it is cooler than yellow-white stars
<span>Because iron is dense - a small volume or amount weighs a lot compared to other materials</span>
The informal sector lacks land, capital, and technology, and can be less productive than formal enterprises, however, it can improve individual earnings and add money into the economy. It is the access to the market and power to purchase that can assist the productivity of the informal worker. If products can be sold on a cheaper mass scale to informal workers to use as a resource, this could help improve this sector to be more meaningful.
