The 8 most common elements in Earth’s crust are:
46.6% Oxygen (O)
27.7% Silicon (Si)
8.1% Aluminum (Al)
5.0% Iron (Fe)
3.6% Calcium (Ca)
2.8% Sodium (Na)
2.6% Potassium (K)
<span>2.1% Magnesium (Mg)
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Hey, there!
Question: Which level of classification contains all the others
Answer: 
(
Option B)
Good luck on your assignment and enjoy your day!
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Answer:
Which of the following venation patterns is characteristic of monocot leaves
Monocot leaves have parallel venation as the vein runs in a straight line e.g zea maize leaf
Explanation:
Mono or root systems have fibrous roots These fibrous roots occupy the upper level of the soil in comparison to dicot root structures that dig deeper and create thicker systems.
A disadvantage is that this type of root is not favourable to the water scarce area or drought. So such plants live in the areas where water is easily available.
