I’ll help but the image for me isn’t available sorry.
They use radiometry and pyrometry
NASA uses the Transiting Exoplanet Survey Satelite (TESS) telescope that employes this technology
This telescope measures the brightness/luminosity of stars. When this brightness drops regularly, every more or less in the same number of years, then there is the likelihood of a planet orbiting the star. The dip in brightness of the star is directly proportional to the size of the planet and the distance between the star and the orbiting planet.
Answer:
Inform policy makers about the scientific facts
Explanation:
This is not exactly a breaking news that environmental deterioration is one of the most threat our world is facing. In the form of global warming, green house effect and industrial pollutants leading to air pollutants, all the factors including many other pose serious harm for the coming generation to live on the planet.
What is the need of hour is to conduct meetings with proper agenda of environmental protection, with policy makers. So the benefits of these meetings will be that they will introduce advanced policies for the environmental protection like banning the usage of plastic bags, tree plantation in every street, maximum use of public transport etc.
It is very important to keep policy makers informed about the facts because they usually are not environmentalists and like other people they donot know how crucial this issue is.
Hope it help!