It is said that smokers have a higher health risk compared to non-smokers.

In this chemical reaction, succinate is produced.

Caseous necrosis was found in his lungs.

He has a strong sense of self-affirmation and always maintains a positive attitude.

Plants of this kind are collectively referred to as 'cacti'.

It is said that secondhand smoke has a negative impact on health.

My younger brother goes to a school for special needs.

Homo erectus played a significant role in the process of human evolution.

Protectionist policies are introduced to protect domestic industries from foreign competition.

My younger brother attends a class for special needs.