1. I'd like to describe and compare the photos.
2. In picture A, we can see a man who is walking by a desert and carrying his backpack which might contain food and water. There are also a few people behind him.
3. Picture B shows a lot of snow, mountains and a man too, he is sitting near his tent. It seems that he is a climber. I suppose he is dying from cold even if he wears equipment.
4. These pictures have a few things in common. As I mentioned before, in pictures we see men. In addition, the guys are travellers since not everyone would climb a mountain with an equipment or go hiking to die from heat or dehydration. They both try to survive.
5. However, the photos have some differences. Foremost, the first picture shows the desert, temperature is becoming hotter and hotter, but the second one is opposite: the weather is cold and the place just frostbites you. Besides, people behind the first man can be his friends, meanwhile at the second photo we can see an alone one.
6. In my opinion, hiking is harder. Unlike climbing, you try to not agonise over the high temperature and you always want to drink, your skin is burnt by the sun, your whole body sweats. But activity at the second photo is not too easy.
по идее, все подходит? больше в голову ничего не лезет) не особо люблю эти темы про путешествия, только однотипные и очевидные различия/сходства замечаю