Over the past million years, Earth's globally averaged surface temperature has risen and fallen by about 5˚C in ice-age cycles, roughly every 100,000 years or so (Figure 2.1a).
Answer:
A civilization that is vulnerable to attack from warring civilizations might be
on a vast, open plain with rich resources.
Answer:
in areas that receive little precipitation
in Mediterranean Europe
Explanation:
The availability of water pose the greatest problem in the following regions;
areas that receive little precipitation
Mediterranean Europe
Community based tourism helps local communities that is they look after their well-being. Sustainable tourism means visiting to a particular place and making a positive impact on the society,economy and environment.
Explanation:
Community based tourism is more effective than sustainable tourism because in case of community based tourism , many financial as well as non financial helps are provided to communities residing locally.It makes the environment sustainable that is community based tourism as well as ecotourism can move hand in hand.It helps in empowerment that is develops income facilities for the local people.Helps in gaining authentic experiences.
For example in case of Atacama Desert Tour the tourist stays in the desert with that community of people who are staying in the desert. Tourists come to know regarding their cultures as well as habits.
