The Himalaya mountain range stretches about 2,400 km from Tibet into Pakistan. It began forming when the Indian plate collided with the Eurasian plate. The pressure of the colliding plates forced the crust upward, folding, bending, and twisting rock. The Indian plate still moves north at a rate of about 5 cm/year, which is faster than your fingernails grow. Some mountains in the Himalayas lift up at a rate of 10 mm/year 1. At which type of plate boundary did the Himalayas form?​

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !