Is oil a renewable fuel? Renewable fuels are fuels produced from renewable resources. Examples include: biofuels (e.g. Vegetable oil used as fuel, ethanol, methanol from clean energy and carbon dioxide or biomass, and biodiesel) and Hydrogen fuel (when produced with renewable processes). What are the worst fossil fuels? Why is coal the worst fossil fuel […]
What is the weight of a 0.2 kg mass?
Why does river discharge increase downstream?
Why does river discharge increase downstream? Changes Downstream As one moves along a stream in the downstream direction: Discharge increases, as noted above, because water is added to the stream from tributary streams and groundwater. As discharge increases, the width, depth, and average velocity of the stream increase. Why are river profiles concave? River profiles […]
Is P and N directly proportional?
Is P and N directly proportional? Boyle’s law states that pressure (P) and volume (V) are inversely proportional. Gay-Lussac’s law states that pressure (P) and temperature (T) are directly proportional. Avagadro’s law states that the amount (n) of a substance is directly proportional to the volume (V). How do you solve for V in PV […]
What happens to potatoes when boiled?
What happens to potatoes when boiled? In contrast to oven baking, when potatoes are boiled the starch granules absorb not only the internal moisture but also some of the surrounding water. This causes the starch granules to rupture and spill their moist starchy contents, resulting in mashed potatoes that are wet and pasty. Should you […]
Which two substances Cannot be broken down?
Which two substances Cannot be broken down? Each kind of atom is an element. Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means. Can antimony be broken down by chemical means? The substance that can not be broken down by chemical means is antimony. What Cannot be broken […]
What is the weakest carbon carbon bond?
What is the weakest carbon carbon bond? Alkyne What are the 4 main carbon stores? Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) […]
Which type of igneous rocks based on composition has the highest amount of silica content?
Which type of igneous rocks based on composition has the highest amount of silica content? Compilations of many rock analyses show that rhyolite and granite are felsic, with an average silica content of about 72 percent; syenite, diorite, and monzonite are intermediate, with an average silica content of 59 percent; gabbro and basalt are mafic, […]
What is simple harmonic motion write its any four characteristics?
What is simple harmonic motion write its any four characteristics? (i) In SHM, acceleration of the particle is directly proportional to its displacement, and directed towards the mean position. (ii) It can be represented by a single harmonic function of sine or cosine. (iii) Total energy of the particle executing SHM remains conserved. (iv) It […]
What is the effect of grazing in our environment?
What is the effect of grazing in our environment? Grazing can damage habitats, destroy native plants and cause soil erosion. When livestock eat native plants, invasive plants often replace them. This reduces food supply in ecosystems because the animals start competing for non-invasive plants for food. Is a grazing animal? In agriculture, grazing is a […]