The reddish-orange colour of weathering of volcanic ash is most likely due to its iron sulfide content which oxidizes to iron oxide so that limonite is yellow and hematite is red and in ash since it is such fine grained material it weathers more rapidly because it has a large surface area.
Answer:
2.
1.Electronics test and test equipment are essential elements of electronics and radio. Electronic equipment can develop failures, or it may not work properly when it is built. In order to discover whether a circuit is working, and then where the problem is located, it is necessary to use various forms of test equipment.24 Oct 2020
<span>The question is asking whether it is true that the defining characteristic of deserts is their high daytime temperatures. This is actually false, as deserts are defined as places with a very small precipitation - rainfall. In fact, the biggest desert on Earth is Antarctica, which is very cold! Some deserts are hot, for example Sahara, but not all of them.</span>
