Earth Day Crossword Puzzle

QUESTIONS LIST:

• 1970: the first earth day was celebrated this year
• 1962: the environmental book "silent spring" by rachel carson was published in this year
• earth: the theme for earth day 2022 was "restore our _ ."
• biosphere: the earth's outermost layer where all life exists
• amazon: the largest rainforest in the world, which is home to a significant amount of earth's biodiversity
• planetary boundaries: the term for the point in time when humans have caused irreversible damage to the planet
• climate change: the 2015 paris agreement was signed to address this global issue
• montreal: the international treaty designed to protect the ozone layer, signed in 1987
• april 22: the day on which earth day is celebrated annually
• photosynthesis: the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll
• global warming: a term used to describe the increase in earth's average surface temperature due to rising levels of greenhouse gases
• 197: the total number of countries that signed the 2015 paris agreement
• biodiversity: the term for the variety of life on earth, including species, genetic diversity, and ecosystems
• moon: the earth's natural satellite that controls ocean tides and affects the planet's climate