Q. Who discovered the formation of ozone from photochemical reactions?

View solution

Q. Between what altitudes, is the ozone layer found in highest concentrations?

View solution

Q. Nitrogen also helps in preventing UV rays from reaching the Earth.

View solution

Q. Which of the following UV radiations is responsible for causing sun burns and skin cancer?

View solution

Q. The long UV-B radiations are important for vitamin D production of the skin.

View solution

Q. In which season is the ozone found at its maximum level in the northern hemisphere?

View solution

Q. When was the ozone hole discovered?

View solution

Q. The ozone hole is a phenomenon that has occurred in:

View solution

Q. Which of the following chemicals are responsible for the depletion of the stratospheric ozone layer?

View solution

Q. What does EESC stand for in context of ozone depleting compounds?

View solution

Q. The Montreal Protocol bans the production of which of the following chemical substances?

View solution

Q. Greenhouse gases that are directly influenced by human activities are:

View solution

Q. What does an increase in carbon dioxide in atmosphere contribute?

View solution

Q. Nitrous oxide has contributed about

View solution

Q. Atmospheric methane concentrations is:

View solution

Q. Amount of water vopours in atmosphere does not change because of

View solution

Q. What are fluorinated greenhouse gases?

View solution

Q. Most important greenhouse gase is:

View solution

Q. 'Methane' is main component of:

View solution

Q. What contributes to chemical destruction of atmospheric ozone?

View solution