نمونه سوالات و آزمون ماک (Mock Test) آیلتس با پاسخ و تحلیل

A. A seed bank stores seeds so that plants can be grown again in the future. Before seeds are put away, staff dry them carefully and place them in sealed containers. Most seeds last longer when both moisture and temperature are low, although the best conditions depend on the species. Staff test a sample every few years to see whether the seeds can still grow. If too few germinate, they grow new plants and collect a fresh batch of seeds.

B. Some community seed banks focus on crop varieties grown in their own region. A variety that is uncommon today may have traits that prove useful later, such as tolerance of a local disease or a short growing season. Gardeners contribute seeds and describe where the parent plants were grown. The bank gives some seeds back to gardeners to grow, so the collection does not remain locked away. It does not sell seeds for profit.

C. A packet of seeds is much more useful when its history is known. Staff record the plant's name, the place and date of collection, and any growing conditions reported by the donor. They give each batch a code that connects the packet to its record. Without that information, researchers might be unable to compare two varieties or decide which one is suitable for a particular site.

D. Seed banks cannot preserve every plant equally well. Some seeds lose their ability to grow quickly even in cold storage, while others cannot survive drying. These plants may need to be kept as living collections instead. Community banks also depend on volunteers to clean, test and distribute seeds. Regular work is needed to keep a collection useful over many years.