Category: Physics

Which forest layer has the greatest amount of net primary productivity? Basic ideas – NPP in terrestrial ecosystems Tropical rain forests have high NPP and the highest biodiversities of any terrestrial ecosystems. The physical environment favours vast photosynthetic output and high growth rate. Which biomes are most affected by humans? Tropical dry forests and temperate […]

How much energy is used in photosynthesis? The part of the solar spectrum used by plants has an estimated mean wavelength of 570 nm; therefore, the energy of light used during photosynthesis is approximately 28,600/570, or 50 kcal per einstein. What percentage of sunlight is used in photosynthesis? 3 percent What organisms use energy for […]

What is a chain reaction simple definition? 1a : a series of events so related to each other that each one initiates the next. b : a number of events triggered by the same initial event. 2 : a self-sustaining chemical or nuclear reaction yielding energy or products that cause further reactions of the same […]

Could we survive on earth without the greenhouse effect quizlet? What is the greenhouse effect? No we would not be able to survive because without these gases, the Earth would be too cold for humans, plants and other creatures to live. The two largest greenhouse gases are Co2 and methane which comes from fossil fuels […]

What is the most popular personal retirement plan? IRAs. The IRA is one of the most common retirement plans. An individual can set up an IRA at a financial institution, such as a bank or brokerage firm, to hold investments — stocks, mutual funds, bonds and cash — earmarked for retirement. What happens to your […]

What is an example of a terrestrial food chain? Well, for starters, a food chain is a series of interconnected feeding relationships among different species in an ecosystem. With this in mind a common terrestrial food chain example is grass-grasshopper-snake-hawk. Primary producers, which include plants, are at the bottom (or base) of the food web. […]

How much is a printed circuit board? Printed circuit boards have a huge range of quality, reliability, complexity, and price points. A circuit board typically costs from 50 cents to $300 dollars to produce, depending on your needs. What is the other name of printed circuit board? PCBs use conductive pathways, tracks or signal traces […]

What is used to transport hot crucibles and to remove their covers? Laboratory Equipment A B used to grind chemicals into powder mortar and pestle used to hold objects on a ring stand utility clamp used to transport hot crucibles and to remove their covers crucible tong to hold, mix, and heat chemicals – easier […]

What is the number of protons in copper? 29 What is the Unabbreviated electron configuration of copper? [Ar] 3d¹⁰ 4s¹ What is the ground state of copper? Copper has the ground-state electronic configuration [Ar]4s1 3d10. It has two commonly observed ions, Cu+ and Cu2+. Cu+ has the ground-state electronic configuration [Ar]3d10. What is the Unabbreviated […]

How fast is biodiversity being lost? These experts calculate that between 0.01 and 0.1% of all species will become extinct each year. If the low estimate of the number of species out there is true – i.e. that there are around 2 million different species on our planet** – then that means between 200 and […]