Добрый день 🌿Предложение построено в Present Simple Passive.
Общий вопрос: Are mineral examination and evaluation of reserve through different prospecting techniques done to decide the ways and type of mining in the account to productivity condition?
Альтернативный вопрос: Are mineral examination and evaluation of reserve through different prospecting techniques or methods done to decide the ways and type of mining in the account to productivity condition?
Разделительный вопрос: Mineral examination and evaluation of reserve through different prospecting techniques are done to decide the ways and type of mining in the account to productivity condition, aren't they?
Специальный вопрос: What is usually done to decide the ways and type of mining in the account to productivity condition?