 
<translate> Ana iya samun tasirin toshewa tare da Zaɓuɓɓuka: - (A) ƙaura daga waje - (B) lalacewar kai tsaye ga huhu - (C) Motsawar iska mai yawa - (D) gasar - (E) idan mutane sun dame beyar - (F) gasa don albarkatun - (G) Ci gaban tsire-tsire ya ragu - (H) Canjin zafin jiki Bari mu warware wannan matsalar a hankali. <eng> Bottleneck effect can occur with 
Options:
- (A) external migration
- (B) direct damage to the lungs
- (C) Movement of an air mass
- (D) competition
- (E) if humans disturb bears
- (F) competing for resources
- (G) Plant growth is reduced
- (H) Temperature changing Let's solve this problem gradually.
 