Answer:
Green house effect and human activity.
Explanation:
-The green house effect: Some gases in the atmosphere trap the heat and doesn't allow it to scape making the Earth warmer.
-Human activity: The industrial activities have increased the carbon dioxic levels that have contributed to the higher temperatures. Also, deforestation, fluorinated gases and fertilisers containing nitrogen have contributed to climate change.
The glacier's move dirt and rocks
Your correct answer is B, a mercator map. the Mercator projection, the map most commonly seen hanging in classrooms and in text books, was created in 1596 to help sailors navigate the world. The familiar map gives the right shapes of land masses, but at the cost of distorting their sizes in favour of the wealthy lands to the north.<span>
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Biotic factors are organisms that interact with non-living & living parts of an ecosystem.
Egs. badgers, worms, fungi, bacteria, insects.
They give us informations about our ancestors and how did they live and what did they do and than compare it to present way's of life.