# The presence of O3 in atmosphere of earth:? with Answer - Forestry Mcqs | TestPrep

> Solved MCQ: The presence of O3 in atmosphere of earth: Correct Answer: D. Helps in checking the penetration of ultra violet rays to earth. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

---

Tested in Competitive Exams:

- [NTS Test Prep](https://test-prep.blog/exams/nts)
- [FPSC Past Papers](https://test-prep.blog/exams/fpsc)
- [PPSC Solved MCQs](https://test-prep.blog/exams/ppsc)
- [PMDC MDCAT 2026](https://test-prep.blog/exams/mdcat)
- [UET ECAT Prep](https://test-prep.blog/exams/ecat)
- [CSS Central Superior](https://test-prep.blog/exams/css)

- [Forestry Mcqs](https://test-prep.blog/categories/forestry-mcqs)
Difficulty: Easy 82% Accuracy

# The presence of O3 in atmosphere of earth:

Direct Answer & Quick Reference

The correct option is **D. Helps in checking the penetration of ultra violet rays to earth**.

A. Has been responsible for increasing the average global temperature in recent

B. Is advantageous since it supplies O2 for people travelling in jets

C. Hinders higher rate of photosynthesis

D. Helps in checking the penetration of ultra violet rays to earth **(Correct Answer)**

✨ Explain with AI

Verified Key: D. Helps in checking the penetration of ultra violet rays to earth
Solved by 5,007+ students

Verified against official examination board answer keys and standard curriculum textbooks.

- [Previous Question Reclamation of dry sites without irrigation is / are : _____ ?](https://test-prep.blog/mcq/reclamation-of-dry-sites-without-irrigation-is-are-df518aae-28c4-44b3-b1ab-6a1e5a45eaee)
- [Next Question Highway planting is / are : _____ ?](https://test-prep.blog/mcq/highway-planting-is-are-47663ff7-be7d-44d9-a5c3-2eaea2ef4531)

- [Practice More Forestry Mcqs MCQs](https://test-prep.blog/quiz/smart?category=forestry-mcqs)
- [How We Verify Questions →](https://test-prep.blog/editorial-policy)

## Subject Overview

Explore thousands of solved past paper MCQs for Forestry Mcqs categorized with explanations.

- [Browse All Forestry Mcqs MCQs →](https://test-prep.blog/categories/forestry-mcqs)

## Related Questions

- [Reclamation of dry sites without irrigation is / are : _____ ?](https://test-prep.blog/mcq/reclamation-of-dry-sites-without-irrigation-is-are-df518aae-28c4-44b3-b1ab-6a1e5a45eaee)
- [Highway planting is / are : _____ ?](https://test-prep.blog/mcq/highway-planting-is-are-47663ff7-be7d-44d9-a5c3-2eaea2ef4531)
- [Cultural practice is / are : _____ ?](https://test-prep.blog/mcq/cultural-practice-is-are-f15c2ae8-8362-4575-91b4-6431c01cbba0)
- [The major types of mulching are: _____ ?](https://test-prep.blog/mcq/the-major-types-of-mulching-are-99c0187b-339a-4816-b212-ea7134499893)
- [The effects of mulches, irrespective their composition, are attributed to: _____ ?](https://test-prep.blog/mcq/the-effects-of-mulches-irrespective-their-composition-are-attributed-to-366c9bed-dec9-4f4b-a4b0-212d59950f0c)

---
*Source: https://test-prep.blog/mcq/the-presence-of-o3-in-atmosphere-of-earth-97357ef0-87ef-447c-b02b-25c44808b2a3*
*Format: Markdown for Agents (Content Negotiation: text/markdown)*