These are not gemstones!​

This is a microscopic image of loose grain-like structure, that is pale yellowish brown in colour. ​

It is commonly found on beaches. ​

What are we talking about?

​

An object is made of a mixture of loam, mud, sand and water mixed with a binding material such as rice husks or straw.​

These are usually air-dried, but in warm regions it is sun-dried.​

What object used in construction are talking about?

Alluvium consists of silt, sand, clay, and gravel and can hold plenty of water.​

Alluvium is material deposited by rivers.​

Which crop that can be used as a natural glue when boiled is this?

When this natural phenomenon occurs and hit a sandy beach, it fuses the sand into glass.​

What natural phenomena which contains huge amounts of electricity and heat is this?

In steep and hilly areas, water from rain starts moving at a high speed. ​

When it moves through the soil the plants without a strong root foundation get uprooted.​

The smaller the size of each soil particle the more easily this occurs.​

What are we talking about?