When you have a look at the tire of the car, you will notice that the numbers are written in the following pattern: P215/50R17. What is the Meaning of the First Letter? The first alphabet on the tire can be P, LT, ST or T. Sometimes there is the absence of the first alphabet. The first alphabet denotes:
Clay is one of the three principal types of soil, the other two being sand and loam. A certain amount of clay is a desirable constituent of soil, since it binds other kinds of particles together and makes the whole retentive of water. Excessively clayey soils, however, are exceedingly difficult to cultivate.
clay or a certain dirt. No not clay or certain dirt at all- Soil is red because of the same compound that causes rust to be red, oxidised iron (most common formula- Fe2O3). â¦If the soil has nutrients like Iron and other elements that oxidise it will be dark. A soil with just Iron and not many other nutrients will usually be a lighter red.