Answer:
1. Pandas are popular in the world. Mazaalais are not popular in the world.
<em><u>= Pandas are more popular than Mazaalais in the world.</u></em>
2. Mongolian horses are fast they cannot gallop faster than Takhi though.
<em><u>= Takhi can gallop faster than Mongolian horses.</u></em>
3. Przewalski is a famous researcher. But few people know about Roy Chapman Andrews.
<em><u>= Roy Chapman Andrews is lesser-known than Przewalski, a famous researcher.</u></em>
4. 'Have you ever seen a wild camel? Does it look same as a domestic camel?
<em><u>= Does a domestic camel look more similar to a wild camel?</u></em>
5. For many tourists , travelling to Mongolia is very expensive than travelling to other.
<em><u>= For many tourists, traveling to Mongolia is more expensive than traveling to others.</u></em>
6. Taking a tour in UB is interesting. But travelling to the countryside is more interesting.
<em><u>= Traveling to the countryside is more interesting than taking a tour in UB.</u></em>
Explanation:
The comparative degree is the degree of comparison made between two nouns or objects. They are also used to show changes between two items or things or elements.
The given sentences rewritten in the comparative forms are as follows-
<u><em>1. Pandas are more popular than Mazaalais in the world.
</em></u>
<u><em>2. Takhi can gallop faster than Mongolian horses.
</em></u>
<u><em>3. Roy Chapman Andrews is lesser-known than Przewalski, a famous researcher.
</em></u>
<u><em>4. Does a domestic camel look more similar to a wild camel?
</em></u>
<u><em>5. For many tourists, traveling to Mongolia is more expensive than traveling to others.
</em></u>
<u><em>6. Traveling to the countryside is more interesting than taking a tour in UB.</em></u>
