What is the human cause of climate change? Humans are increasingly influencing the climate and the earth’s temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming. What is a natural climate change? […]
What happens when an electron drops to a lower energy level?
What happens when an electron drops to a lower energy level? An electron can be excited when its absorbs energy from electromagnetic radiation. An excited electron can fall to a lower energy level. When this happens, energy is lost as electromagnetic radiation. Different changes in energy level cause the emission of different frequencies. What causes […]
What is the most common form of depression?
What is the most common form of depression? Six common depression types Major depression. The classic depression type, major depression is a state where a dark mood is all-consuming and one loses interest in activities, even ones that are usually pleasurable. Persistent depressive disorder. Bipolar disorder. Seasonal affective disorder (SAD). Disclaimer: Which celebrities are depressed? […]
Which of the following is an advantage of prospective cohort studies?
Which of the following is an advantage of prospective cohort studies? One of the advantages of prospective cohort studies is they can help determine risk factors for being infected with a new disease because they are a longitudinal observation over time, and the collection of results is at regular time intervals, so recall error is […]
How do heavier elements formed in stellar nucleosynthesis?
How do heavier elements formed in stellar nucleosynthesis? Mar. 18, 2019 — Heavy elements are produced during stellar explosion or on the surfaces of neutron stars through the capture of hydrogen nuclei (protons). What is r in the r process? In nuclear astrophysics, the rapid neutron-capture process, also known as the r-process, is a set […]
Why is it called a shield volcano?
Why is it called a shield volcano? Illustrated Volcano Glossary Shield volcanoes are volcanoes that mainly erupt fluid (usually basaltic) lava flows that are able to travel over long distances and thus construct over time broad, gentle slopes. They are called shield volcanoes, because they resemble the shape of a warriors’shield. How dangerous is a […]
How do you calculate cooling capacity of a heat exchanger?
What is the difference between chyme and bile?
What is the difference between chyme and bile? Chyme is different from bile because chyme is actually mixed with bile to lower its pH. Chyme is found in the stomach (it is the partially digested food) and the bile can be located in the liver. It helps to digest the food. What nutrients are absorbed […]
Does anyone know anyone?
Does anyone know anyone? ‘Anybody’ is a third person singular form and takes -s in the present simple tense. That’s why the question form requires -s and ‘Does anybody’ is correct. The same would apply to ‘Does anyone’, ‘Does anything’ etc. What is the difference of do and are? We use does and is with […]
What is the most dangerous type of skin cancer?
What is the most dangerous type of skin cancer? The most serious is melanoma. Our skin is made up of cells: basal cells, squamous cells and melanocytes. The different types of skin cancer are named for the skin cell where the cancer develops: basal cell carcinoma, squamous cell carcinoma and melanoma. Can skin cancer go […]