Climate change research aims to understand global environmental change and how it will impact nature and society.Oct 11, 2018 What is your definition of climate change? Climate change refers to long-term shifts in temperatures and weather patterns. These shifts may be natural, such as through variations in the solar cycle. What is climate change introduction? … Read more
Unlike some influenza viruses, the Spanish flu variant only infected the respiratory tract, and was unable to move to and damage other organs in the body such as the spleen. In fatal cases of the Spanish flu, individuals often succumbed in just a few days. What did the Spanish flu do to the immune system? … Read more
If gas molecules satisfy the formula above, their kinetic energy is much less than the depth of potential well of planet's gravity, therefore they cannot escape. So the planet will keep its atmosphere.23 Dec 2014 Is Titan losing its atmosphere? Cassini observations of Titan's atmosphere are revealing the mechanisms by which Titan's atmosphere is being … Read more
Though the risk remains low, NASA scientists have found that the asteroid Bennu, shown here, has a higher chance of hitting Earth in the next 300 years than thought.Though the risk remains low, NASA scientists have found that the asteroid Bennu, shown here, has a higher chance of hitting Earth in the next 300 years … Read more
Where is nitrogen found on Earth? Although we often refer to the air we breathe as "oxygen", the most common element in our air is nitrogen. The Earth's atmosphere is 78% nitrogen gas or N2. Even though there is so much nitrogen in the air, there is very little in the Earth's crust. Where is … Read more
Current genealogical DNA testing can't go back any further than eight generations. While that isn't the longest history ever, the ability to verify your most recent family members is a great start to getting a complete picture of your family history.Apr 21, 2021 Who can trace their ancestry back the farthest? educator Confucius The longest … Read more
Gene drives are self-propagating mechanisms by which desired genetic variants can be spread through a population faster than traditional Mendelian inheritance. CRISPR is making this strategy so effective that alleles can continue their spread if they confer disadvantageous traits, such as sterility, to an organism.04-Dec-2018 How does gene drive work with CRISPR? Every time the … Read more
Green tea contains a catechin called epigallocatechin-3-gallate (EGCG). Catechins are natural antioxidants that help prevent cell damage and provide other benefits. These substances can reduce the formation of free radicals in the body, protecting cells and molecules from damage. Is green tea scientifically proven? Green tea has been shown to improve blood flow and lower … Read more
Conservation in the United States can be traced back to the 19th century with the formation of the first National Park. Conservation generally refers to the act of consciously and efficiently using land and/or its natural resources.Conservation in the United States can be traced back to the 19th century with the formation of the first … Read more
Tall, forbidding mountains and dry deserts cover most of the landscape of Afghanistan. The jagged mountain peaks are treacherous, and are snow covered for most of the year. Many Afghans live in the fertile valleys between the mountains and grow their crops and tend to their animals. Is Afghanistan like a desert? Afghanistan is a … Read more