emmacox069
30.06.2019 •
Biology
Celery stalks that are immersed in fresh water for several hours become stiff and hard. similar stalks left in a salt solution become limp and soft. from this we can deduce that the cells of the celery stalk are
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Ответ:
Celery stalks that are immersed in fresh water for several hours become stiff and hard. :333333
Ответ:
A trade barrier is when a government forces restriction on exchange of goods and services, while a migration barrier prevents and individual from moving from one country to another.
Explanation:
A trade barrier or barriers is refereed to as when a government forces a restriction on the international free exchange of services or goods.
Trade barriers are categorized as, customs practices, quotas, import licensing, labeling, standards, testing, import policies reflected in tariffs and other import charges, and various types of certification.
Migration barriers can be defined as when a person or prevented or not allowed to move from one to another country.
National Barriers comprises of both physical and political factors that have major obstacles to migration.