1. Aluminium
2. Calcium
3. Silicon
4. Oxygen
Select the answer using the code given below :
Earth's Crust Elements: Weight Percentage Order
This question asks us to arrange four major elements found in the Earth's crust—Aluminium, Calcium, Silicon, and Oxygen—based on their weight percentage, from the smallest percentage to the largest (ascending order). Understanding the composition of the Earth's crust is key to solving this.
Major Elements in Earth's Crust
The Earth's crust is primarily composed of several elements. The abundance varies significantly among them. Here are the approximate weight percentages for the elements mentioned in the question:
| Element Name | Symbol | Approximate Weight Percentage (%) |
|---|---|---|
| Oxygen | O | 46.6 |
| Silicon | Si | 27.7 |
| Aluminium | Al | 8.1 |
| Calcium | Ca | 3.6 |
Weight Percentage Ranking of Elements
Now, let's arrange these elements based on their weight percentages in ascending order (from lowest to highest):
- Lowest Percentage: Calcium (Ca) at approximately \(3.6\%\)
- Next Lowest: Aluminium (Al) at approximately \(8.1\%\)
- Next: Silicon (Si) at approximately \(27.7\%\)
- Highest Percentage: Oxygen (O) at approximately \(46.6\%\)
The question assigns numbers to these elements:
- 1. Aluminium
- 2. Calcium
- 3. Silicon
- 4. Oxygen
Translating the ascending order of elements (Calcium, Aluminium, Silicon, Oxygen) into their corresponding numbers gives us the sequence: 2, 1, 3, 4.
Similar Questions
- Which of the following pairs of theories about origin of the Earth and their propounders is/are correctly matched ?
1. Gaseous Hypothesis : Kant
2. Binary Star Hypothesis : Russell
3. Planetesimal Hypothesis : Chamberlin
Select the answer using the codes given below : - Consider the following statements about Mechanical Weathering :
1. More compact and highly consolidated rocks are least affected by freeze-thaw weathering.
2. Shattering of rocks is more common in hot deserts.
3. Crystalline rocks are often prone to exfoliation.
Which of the statements given above is/are correct ? - During chemical weathering, when minerals in feldspar change to kaolinite clays, the process is termed as :
- Which of the following statements with reference to Glacial trough is/are correct?
1. Alpine glaciers strip valleys of their soil, regolith and sediment to form glacial troughs.
2. When the sea level is below the floor of a glacial trough, the seawater enters as the ice front recedes, creating a fiord.
Select the answer using the code given below : - Match List-I with List-II and select the answer using the code given below the Lists :
List-I
(Island/Nation)List-II
(Tectonic Plate)A. Comoros 1. North American
PlateB. Baffin Island 2. African Plate C. Sri Lanka 3. Eurasian Plate D. Andaman
Islands4. Indo-Australian
Plate
Code:
Important Questions from Geomorphology
Sandstone is an example of:
Which of the following isnota Metamorphic rock?
Which of the following is NOT a sedimentary rock?
- Identify the third layer of soil from top.
The down fold in a rock is known as a/an:
