How is a stone pebble?

I mean those round stones. Does it arise on its own? Or is it created by man?
by

1 Answer

Answer :

"It arises on its own in nature" - a stone (pebble) simply rotates in a watercourse under the influence of a water stream and rubs against the surrounding stones (pebbles) until (and so thoroughly) it becomes a pebble. : o "man" - do you think that a person is sitting by a stream and playing ??? : D
by

Related questions

Can you use a beach pebble as a pumice stone?

Description : Can you use a beach pebble as a pumice stone?

Last Answer : It’s probably safe, but pebbles (at least when I think of it) are normally small and smooth; pumice is a little bit rough, and that’s what makes it work.

7 Natural Stone Pebble Projects For Every Home

Description : 7 Natural Stone Pebble Projects For Every Home

Last Answer : 7 Natural Stone Pebble Projects For Every Home By: William Siebler Natural stone pebbles are becoming extremely popular in homes because of their wide range of colors and uses. Here are a few ideas for use ... in the planting holes are spread in a thick layer. Larger flat rocks are used as edging.

7. If you had a natural pebble-like the ones shown on page 13 in the textbook, what would you use it for? -History

Description : 7. If you had a natural pebble-like the ones shown on page 13 in the textbook, what would you use it for? -History

Last Answer : I would have used some of these stone tools to cut meat and bone, scrape bark (from trees) and hides (animal skins), chop fruit, and roots. Some may have been attached to handles of bone or ... make spears and arrows for hunting. Other stone tools were used to chop wood, which was used as firewood,

How do pebble stones form?

Description : Do they just make them round?

Last Answer : Pebbles have been forming for decades. It is sanded by other stones in the water until a pebble is formed.

Are the waves caused by a pebble in water the same frequency?

Description : Are the waves caused by a pebble in water the same frequency?

Last Answer : Feel Free to Answer

Are there coasters or anything on the trundle bed with the Pebble Beach Bed and Trundle, or does it just slide on the floor?

Description : Are there coasters or anything on the trundle bed with the Pebble Beach Bed and Trundle, or does it just slide on the floor?

Last Answer : The Pebble Beach Bed and Trundle uses a coaster to slide the trundle under the bed.

Does pebble have only personal computers or do they also offer top range computer servers as used in large establishments under computer deal?

Description : Does pebble have only personal computers or do they also offer top range computer servers as used in large establishments under computer deal?

Last Answer : They do offer servers. A good one might be Acer Computer AH340-UA230N Aspire

How can we find the volume of small pebble with the help of measurin cylinder?

Description : How can we find the volume of small pebble with the help of measurin cylinder?

Last Answer : First put water in measuring cylinder and note the volume of water. Next, put the pebble in it.

__________ mills are termed as disintegrators.(A) Cage (B) Compartment (C) Pebble (D) All tumbling

Description : __________ mills are termed as disintegrators .(A) Cage (B) Compartment (C) Pebble (D) All tumbling

Last Answer : (A) Cage

__________ mills fall in the category of tumbling mills, (A) Ball and pebble (B) Rod and tube (C) Compartment (D) All (A), (B) & (C

Description : __________ mills fall in the category of tumbling mills, (A) Ball and pebble (B) Rod and tube (C) Compartment (D) All (A), (B) & (C

Last Answer : (D) All (A), (B) & (C

A pebble mill (A) Is a ball mill (B) Employs flints or ceramic pebbles as the grinding medium (C) Is a tube mill lined with ceramic or other non-metallic liner (D) Both (B) and (C)

Description : A pebble mill (A) Is a ball mill (B) Employs flints or ceramic pebbles as the grinding medium (C) Is a tube mill lined with ceramic or other non-metallic liner (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

3. __________ mill is normally used for grinding of talc. (A) Tube (B) Compartment (C) Ring-roll (D) Pebble

Description : 3. __________ mill is normally used for grinding of talc. (A) Tube (B) Compartment (C) Ring-roll (D) Pebble

Last Answer : (A) Tube

A __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end. (A) Compartment (B) Tube (C) Rod (D) Pebble

Description : A __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end. (A) Compartment (B) Tube (C) Rod (D) Pebble

Last Answer : (A) Compartmen

__________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products. (A) Buhrstone (B) Roller (C) Attrition (D) Pebble

Description : __________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products. (A) Buhrstone (B) Roller (C) Attrition (D) Pebble

Last Answer : (D) Pebble

Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of (A) Bronze (B) Stainless steel (C) Flint or porcelain (D) Concrete

Description : Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of (A) Bronze (B) Stainless steel (C) Flint or porcelain (D) Concrete

Last Answer : (C) Flint or porcelain

Which of the following is not a revolving/tumbling mill used for size reduction? (A) Compartment mill (B) Pebble mill (C) Cage mill (D) Rod mill

Description : Which of the following is not a revolving/tumbling mill used for size reduction? (A) Compartment mill (B) Pebble mill (C) Cage mill (D) Rod mill

Last Answer : (C) Cage mill

__________ mill is not a revolving mill. (A) Pebble (B) Compartment (C) Cage (D) Tube

Description : __________ mill is not a revolving mill. (A) Pebble (B) Compartment (C) Cage (D) Tube

Last Answer : (C) Cage

Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? (A) Compartment mill (B) Rod mill (C) Pebble mill (D) Tube mill

Description : Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? (A) Compartment mill (B) Rod mill (C) Pebble mill (D) Tube mill

Last Answer : (B) Rod mill