Is ferns a vascular plant? fern, (class Polypodiopsida), class of nonflowering vascular plants that possess true roots, stems, and complex leaves and that reproduce by spores. The ferns constitute an ancient division of vascular plants, some of them as old as the Carboniferous Period (beginning about 358.9 million years ago) and perhaps older. Are ferns […]
What causes GDP to grow over time?
What causes GDP to grow over time? Economic growth means an increase in real GDP. Economic growth is caused by two main factors: An increase in aggregate demand (AD) An increase in aggregate supply (productive capacity) What are 3 ways GDP can be increased? We can use one of our key macroeconomic measures, gross domestic […]
Is solar or wind energy better?
Is solar or wind energy better? Wind Energy: More Efficient, Less Abundant At this time, wind turbines are considered more efficient than solar panels. The most efficient solar panels can capture and convert about 23% of sunlight into energy. Not bad, but wind turbines turn roughly 50% of captured wind into energy. How is solar […]
What country has the least amount of resources?
What country has the least amount of resources? VATICAN CITY: Vatican City is the country with least natural resources. The country has almost no nature’s resources at all. The country is suffering from the complete lack of the coal reserves. Is Sun a natural resource? Any natural substance that humans use can be considered a […]
What can lessen the erosion of a hillside?
What can lessen the erosion of a hillside? What Is Done to Reduce Soil Erosion on Steep Slopes? Planting and Watering. Improved planting and watering practices reduce soil erosion on steep slopes. Controling Soil. Heavy rain washes away bare soil on steep slopes, but soil amendments and mulches reduce soil loss. Growing Ground Cover Plants. […]
What percent of pollution is from the US?
What percent of pollution is from the US? United States (15%) How much pollution does the US produce 2019? Energy consumption in the United States produced 4.57 million metric tons of carbon dioxide emissions in 2020. This was a reduction of roughly 13 percent compared to the previous year…. Characteristic Emissions in million metric tons […]
What does environment mean in simple terms?
What does environment mean in simple terms? 1 : the circumstances, objects, or conditions by which one is surrounded. 2a : the complex of physical, chemical, and biotic factors (such as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival. What are the […]
How many people live out of their home country?
How many people live out of their home country? Overview. In 2015, 244 million people, or 3.3 per cent of the world’s population, lived outside their country of origin. How many people are displaced from their homes each year? We estimate that nearly 5 million Americans are forcibly displaced from their homes every year due […]
What tools did noblemen used in ancient Egypt?
What tools did noblemen used in ancient Egypt? What were noblemen tools of trade? Their tools included saws, axes, chisels, adzes, wooden mallets, stone polishers and bow drills. Since wood suitable for building was scarce in ancient Egypt, it was imported from countries such as Lebanon. What was the role of the pharaoh in ancient […]