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What is the evidence to show that climate change is happening? 


Evidence for climate change can be seen in ice cores, extreme weather events and changes in nature, such as changes in the migration pattern of birds. Ice cores are extracted from Antarctica and Greenland. E...
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Answered by Alice M. • Geography tutor
2894 Views

Describe and explain the role of positive feedback in an action potential

Describe:· Random or small amount of sodium ions enter the axon (diffusion) which leads to a slight depolarisation of the membrane· Down the concentration gradient (more sodium outside the cell than inside)·...
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Answered by Ayesha H. • Biology tutor
13078 Views

What are the main tenets of the Republican Party?

The Republican party in the US is the right-wing end of American politics. Although politics in the US is greatly bipartisan, it is also difficult to separate the many different facets on either side. The Re...
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Answered by Amelia F. • Politics tutor
4854 Views

What are the issues with globalisation?

Globalisation is the process by which there is an increase of power for international institutions, and far more interaction between different states on an international governing level. The collaborative an...
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Answered by Amelia F. • Politics tutor
3135 Views

What are the differences between classical and operant conditioning? Give examples of studies.

Conditioning refers to behaviour which is leaned. Two main types of conditioning have been identified in Psychology, these are classical and operant conditioning. Classical conditioning refers to behaviour e...
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Answered by Isobel D. • Psychology tutor
11053 Views