The world’s most polluted city is tough to pinpoint, although those with consistently bad air quality include Lahore, Pakistan; Hotan, China; and Delhi, India are the highest ranking in air pollution index.According to real-time data from air sensor startup IQAir, during wildfire season, cities such as New York, Chicago, San Francisco, Sacramento, and Seattle have … Read more

What is zero gravity, A condition referred to as zero gravity or microgravity occurs when a body appears to be experiencing zero gravitational force. When there is little or no gravitational attraction, things and people appear to be weightless and float freely. Scientists, astronauts, and amateurs have all been captivated by this extraordinary environment, which … Read more

Introduction: Within the gene pool, gene frequencies represent the relative abundance of various alleles. Different evolutionary factors, including natural selection, genetic drift, gene flow, and mutation, can cause changes in gene frequencies throughout time. In reaction to environmental influences and evolutionary pressures, the gene pool is dynamic and liable to change over successive generations. Natural … Read more