Allah's Creation of Mountains and Oceans

Signs of Allah can be seen in many things there are innumerable things found on this Earth for which human life would fell short to see them. Every living or non-living things is the creation of Allah. He can do anything He wants. He has created number of things in this universe for sake of human beings to satisfy their needs by using them. His Blessings and Mercy is very very vast which cannot be compared by anyone.
Huge Mountains that stands still is a beautiful creation of Allah and that He has kept a balance on the Earth. Huge mountains which are very advantageous to us. They block the rain bearings winds and results in heavy rainfall. Different kinds of species are found on and near the mountainous regions. Mountains protect us from any sudden attack from the enemy. Mountains have various kinds of vegetations. They add beauty to our Earth. Similarly mountains give different types of medicinal plants and shrubs which are useful for making different kinds of medicines. Mountains maintain the ecological balance to our atmosphere.

We placed firmly embedded mountains on the earth, so it would not move under them
(Qur'an, 21:31)
Have We not made the earth as a bed and the mountains its pegs? (Qur'an, 78:6-7)
[He] cast firmly embedded mountains on the earth so that it would not move under you
(Qur'an, 31:10)
"If the ocean were ink (wherewith to write out) the words of my Lord, sooner would the ocean be exhausted than would the words of my Lord, even if we added another ocean like it, for its aid."
(Al-Kahf, Chapter 18, Verse 109)

Oceans Allah has created vast oceans and these oceans provides different kinds of sea foods as well as water is used for navigations in spite of having two oceans one of sweet water and one of salt water they do not mix with each other. That is the real miracle of Allah. The vast ships sail on the bed of oceans and are a important means of transport for carrying goods and people.
Allah says:
(And it is He Who has let free the two seas (kinds of water): this is palatable and sweet, and that is salty and bitter; and He has set a barrier and a complete partition between them.) (25:53)
(Or [the state of a disbeliever] is like the darkness in a vast deep sea, overwhelmed with waves topped by waves, topped by dark clouds, (layers of) darkness upon darkness: if a man stretches out his hand, he can hardly see it! And he for whom Allah has not appointed light for him there is no light.) (24:40)
And if all the trees on earth were pens and the ocean (were ink), with seven oceans behind it to add to its (supply), yet would not the words of Allah be exhausted (in the writing): for Allah is Exalted in Power, and full of Wisdom
(Surah Luqman, Chapter 31, Verse 27)

And among His Signs are the ships, smooth-running through the ocean, (tall) as mountains.
(Ash-Shura, Chapter 42, Verse 32

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A teacher by profession