Question

space radiation poses a serious problem for astronauts on long - duration missions, such as those to mars. unlike earth, which is shielded by a magnetic field and atmosphere, space exposes travelers to high levels of cosmic rays and solar particles. this radiation can damage dna, increase cancer risk, and impair cognitive function, threatening astronaut health and mission success. to address this issue, scientists are developing protective solutions. one approach is designing spacecraft with radiation - shielding materials, such as water or advanced composites, to block harmful particles. another solution involves creating compact magnetic shields that mimic earths natural defenses. these technologies aim to reduce radiation exposure during deep - space travel. medical research also plays a role in solving the problem. scientists are studying drugs that could repair radiation - damaged cells or enhance the bodys resilience. by combining shielding technologies with medical advances, space agencies hope to make long - term missions safer, ensuring astronauts can explore the cosmos without undue health risks. what type of text structure is used in the article? problem & solution cause & effect sequence

Explanation:

The article first presents space radiation as a problem for astronauts (e.g., risks like DNA damage, cancer risk, cognitive impairment). Then it details solutions: designing spacecraft with radiation - shielding materials (e.g., water, advanced composites), creating compact magnetic shields, and medical research (drugs for cell repair or enhancing body resilience). This follows the problem - solution structure.

Answer:

problem & solution