Liz may have have<span> concluded two possible reasons on the population declines of marine iguanas in the Galapagos Islands. One, it has something to do with the changing climate conditions (El Nino phenomenon) in</span> the islands. The weather conditions have affected the algae that the marine iguanas eat. And two, the changing climate conditions are held responsible in the increase in the population of hawks that feed on the marine iguanas.<span> </span>
<h2>
Following theories can be put up about how hominids evolved:</h2>
- <u>The theory of unused organs:</u>
As the methods that the hominids used to find their food changed, they stopped using some organs of their bodies. As the use of these organs stopped, their bodies evolved to eliminate those organs.
- <u>The theory of improved posture:</u>
As the hominids started relying on their legs for the purpose of locomotion and started using their hands for other purposes, their posture went on becoming more and more erect.
- <u>The theory of improved comprehension:</u>
Along with the development of other body parts, the brain of the hominids also developed to become more efficient. This made the hominids develop the ability of comprehension.
Answer:
The main cause is overgrazing. There are others such as urbanization, climate change, overdrafting of groundwater, deforestation, natural disasters and tillage practices in agriculture that place soils more vulnerable to wind.
But overgrasing is the main one
Hope it helps
:)
Because Powhatan people suspected that John Smith was the leader of the Englishmen who wanted to take over their land, so they decided to capture and imprisoned john smith.
They first wanted them to leave, but later on decided on a trade compromise that Powhatan would provide the colonist with food
