Чем обусловлена потеря энергии α-частицами при их движении в воздухе?

Наводнение в Нигере. At least 20 people were killed as a result of severe flooding in Niger. Nearly 50,000 people have lost their homes , according to RIA Novosti . Most people who have left home, housed in the buildings of the local schools . The continued for almost a month flood was caused by heavy rains , unprecedented in the African country , usually suffering from drought. Most affected by the disaster region of Maradi , located in the central part of the country . Flooding can create new problems for the local population. Local farmland threatens massive locust invasion . Celý článek na Flooding in Niger killed 20 people