In a certain code language, the sentence "Siberia is a cold place" is written as "a cold is place Siberia", and the sentence "water freezes to ice here" is coded as "freezes here ice to water". Following the same coding rule, how will the sentence "covers ten per cent of earth" be written in that code language?

Introduction / Context:
This question belongs to the word rearrangement type of coding–decoding. The words themselves are not changed into symbols or numbers; instead, only their order within the sentence is altered according to a rule. You must identify the ordering rule from the examples and then apply it to a new sentence.

Given Data / Assumptions:

• "Siberia is a cold place" → "a cold is place Siberia".
• "water freezes to ice here" → "freezes here ice to water".
• We must code "covers ten per cent of earth".
• The same ordering rule is applied consistently to any sentence.

Concept / Approach:
Look at the original and coded sentences and focus on the order of words. The actual words are unchanged, only their positions move. A very natural and common pattern is that words are simply arranged in alphabetical order based on standard dictionary order.

Step-by-Step Solution:
Step 1: Analyse the first example. Original words: Siberia, is, a, cold, place. Sorted alphabetically: a, cold, is, place, Siberia. The coded form is exactly "a cold is place Siberia". Step 2: Analyse the second example. Original words: water, freezes, to, ice, here. Alphabetical order: freezes, here, ice, to, water. The coded form "freezes here ice to water" matches this order. Step 3: Apply the same idea to the new sentence. Sentence: "covers ten per cent of earth". Conceptually, the meaningful words are covers, ten, percent, of, earth. We treat "percent" as one word corresponding to "per cent". Step 4: Arrange these words in dictionary order: covers (c), earth (e), of (o), percent (p), ten (t). So the coded sentence is: "covers earth of percent ten".

Verification / Alternative check:
You can quickly check that each option contains exactly the same set of words, only in different orders. Only option D matches the alphabetical order pattern that we have verified with both given examples.

Why Other Options Are Wrong:
Option A ends with "of", which breaks the alphabetical order. Options B and C start or place words in an order that does not follow c, e, o, p, t. They may look grammatical, but the question is about the coding rule, not English style.

Common Pitfalls:
Students sometimes overthink and look for complex symbol mappings when the rule is just alphabetical ordering. Another common mistake is to treat "per cent" as two separate tokens instead of one concept "percent", which confuses the ordering.

Final Answer:
Hence, "covers ten per cent of earth" is written as covers earth of percent ten in that code language.