If multiple answers are allowed, the answers would be:
A. Many people are now immunized.
B. More is known about the importance of sanitation and hygiene.
And C. Vaccines have been developed.
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A typical passage through the panama canal would take 8-10 hours
Answer: Debate and discussions on climate change are very important among scientists.
Explanation: Many scientific opinions have expressed in the form synthesis reports, by scientific bodies both national and international standing, and also by debate and surveys of opinion among climate scientists. The aim is to mitigate against climate change and creating awareness of the adverse effect on our enivornment.
Universities, scientists and laboratories contribute their quota to the overall scientific opinion through peer-reviewed publications, and the areas of collective agreement and relative certainty are summarised in respected reports and surveys carried out.
Https://healthresearchfunding.org/marcellus-shale-pros-cons/ this site will give you the pros and cons