Select the sentence which has no spelling error.

My son’s aggregate marks were very poor in the previous year.

The sentence that has no spelling error is:

"My son’s aggregate marks were very poor in the previous year."

Explanation:

1. Mala asked students to aggreggate examples of many chemicals.

   • The word "aggreggate" is misspelled. The correct spelling is "aggregate."

2. Final results will be declared on the basis of agregate marks.

   • The word "agregate" is misspelled. The correct spelling is "aggregate."

3. Chromosomes are aggregatte and closely linked in a cell.

   • The word "aggregatte" is misspelled. The correct spelling is "aggregate."

4. My son’s aggregate marks were very poor in the previous year.

   • This sentence has no spelling error. The word "aggregate" is spelled correctly.