Assuming that the current population of the Earth in 2021 is approximately 7.9 billion people, if 99.98% of the population suddenly died, we can perform a calculation to determine the remaining number of people. First, we find out the percentage of the population that would remain alive: 100% - 99.98% = 0.02% Then we calculate the number of people that would still be alive by multiplying the percentage with the current population: 0.02% * 7.9 billion = 1,580,000 Therefore, if 99.98% of the Earth's population suddenly died, approximately 1.58 million people would remain alive.

If 99.99% of Earth's population as of 2021 suddenly died, we can determine the number of people who would survive as follows: Percentage of population remaining alive: 100% - 99.99% = 0.01% Number of people still alive: 0.01% * 7.9 billion = 790,000 Therefore, if 99.99% of the Earth's population suddenly died, approximately 790,000 people would remain alive.