A Precambrian the Canadian shield dates back almost 4 billion years ago about the same time as the Precambrian eon.
Answer: challengers have a clean political record, but the incumbents do not.
Explanation:
Incumbents simply refers to the person that's holding a particular position or office while the challenger is the person challenging the incumbents that want to take over their position.
While the incumbents have the experience in the role, we should note that the advantage that the Challenger has over the incumbent is that he or she will have a political record that's still clean. In a case whereby the incumbent have done some nasty things that the people didn't like, this may be of immense advantage to the challenger as he or she still has a clean record.
A plausible HDI and IHDI figures for a country is: A. Canada: HDI 0.902 / IHDI 0.83
<h3>What is HDI?</h3>
HDI is an acronym for human development index and it can be defined as a statistical tool that is used to measure a country's level of achievements in terms of social and economic development.
<h3>What is IHDI?</h3>
IHDI is an acronym for inequality-adjusted human development index and it can be defined as a statistical tool that is used to combine a country's average level of achievements with how they are distributed among her population based on a level of inequality in health, education and income.
<em>Under perfect equality, the </em><em>human development</em><em> index (</em><em>HDI</em><em>) and inequality-adjusted </em><em>human development</em><em> index (</em><em>IHDI</em><em>) are equal. Although, </em><em>HDI </em><em>is usually greater than </em><em>HDI </em><em>according to the United Nations Development Programme (UNDP) reports.</em>
In this context, a plausible HDI and IHDI figures for a country is Canada with <u>HDI of 0.902</u> and <u>IHDI of 0.83</u>.
Read more on HDI here: brainly.com/question/26412048
