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3 years ago

(a) What chemical form of aluminium would be expected to dominate in a soil with pH 4.5

Geography

1 answer:

Liono4ka [1.6K]3 years ago

8 0

Explanation:

(a)

There is inverse relation between concentration of aluminium and pH value and it can lead to aluminium toxicity. In this case it will dominate in the form of Hydroxy- aluminium, Al³⁺ cation and polynuclear species.

(b)

Various minerals are brought to the soil during its formation . As we know the pedogenesis process starts due to erosion of the rocks and rocks contain various minerals, of which aluminium is also a part. With time, aluminium gets dissolved in water and the soil and as the rocks become soil after going through various processes like traction, solution etc, it gets aluminium ions also with it.

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He successfully applied his scientific research to create an illustration of the first world map.

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Answer:

Eratosthenes successfully applied his scientific research to create an illustration of the first world map.

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3 years ago

Which of the following is true about the demographic transition model

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What followings? there’s no option

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3 years ago

2-1. Point A is at elevation 2690 feet and is located 520 feet due north of point B which is at elevation 2220 feet. Point C is

meriva

Answer:

In the given topography, point A is the northern side at a height of 2690 feet. B is at a height of 2220 feet and location C has a height of 2340 feet. A and B are separated by a horizontal distance of 520 feet, B and C are separated by a horizontal distance of 250 feet and C is located at N35°E of point B.

From the above data, we can demarcate the topography of the area. The area is inclined towards the southern side as when we move from point A to C and C to A the elevation gradually decreases.

Thus, <u>the exposed rock unit in that area dips towards the South and the strike direction of this rock is the East-west direction.</u>

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Dip and strike always perpendicular to one another.

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3 years ago

Planet A is an outer planet, and planet B is an inner planet. Inner planets rotate slowly, so they take more time to complete a

Anettt [7]

Answer: All the given ideas

Inner planets rotate slower.

Outer planets rotate faster.

Inner planets take more time to complete a rotation.

Outer planets take less time to complete a rotation.

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Planet B is an inner planet.

Explanation:

Taking as a model our Solar System we know the following:

The inner planets (such as our Earth, Mercury, Venus and Mars), rotate on their own axis (also called spin) slower than the outer planets (such as Jupiter, Saturn, Uranus and Neptune). This is because of the Sun's huge gravitational field, which holds the nearest planets tightly as they make their revolution around the star.

However, inner planets complete one orbit around the Sun faster than the outer planets, for this same reason (due to their proximity to the Sun's gravitational field).

Hence, if Planet A is an outer planet, and Planet B is an inner planet, then Planet A will spin (rotate on its own axis) faster than Planet B.

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3 years ago

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Explanation:

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3 years ago