Special purpose acquisition company (SPAC). A special purpose acquisition company (SPAC), sometimes called a blank check company or an empty shell company, uses an initial public offering (IPO) to raise money it will use to purchase or merge with an existing company.
The objective of a cloverleaf is to allow two highways to cross without the need for any traffic to be stopped by red lights, even for left and right turns. The limiting factor in the capacity of a cloverleaf interchange is traffic weaving.
Clovers (Trifolium spp.) are a group of plants in the legume, or bean, family that have the ability to return nitrogen to the soil. There are numerous types of clover that can be grown in U.S. Department of Agriculture plant hardiness zones 3 through 11. The amount of nitrogen produced by clovers depends on the variety, as well as other factors.