Category: Physics

Which best explains how photosynthesis is helpful to humans? Which best explains how photosynthesis is helpful to humans? It reduces the amount of harmful rays released by the sun. It increases the levels of carbon dioxide in the air. What reactants are needed for photosynthesis and respiration? While photosynthesis requires carbon dioxide and releases oxygen, […]

At what pH enzymes are highly efficient? The enzyme activity is maximum at optimum pH which is between 5-7. Why do enzymes denature at high and low pH? Within the enzyme molecule, positively and negatively charged amino acids will attract. This contributes to the folding of the enzyme molecule, its shape, and the shape of […]

What are examples of Geosphere? Examples are all the rocks and sand particles from dry land to those found at the bottom of the oceans. They also include the mountains, minerals, lava and molten magma from beneath the earth’s crust. The geosphere undergoes infinite processes constantly and that, in turn, modifies other spheres. What are […]

What is the relationship between mass and weight of an object? Mass is a measure of how much matter there is in an object, while weight is a measure of the size of the pull of gravity on the object. Mass is the amount of matter in an object. Mass is measured in kilograms (kg). […]

What are the negative effects of technology in the workplace? Distraction is one of the most harmful impacts of technology at the workplace. The result? Cognitive scientist Gloria Mark says, is, people compensating for interruptions by working faster, leading to stress, frustration and pressure. All of this leads to poor productivity. Why the technology is […]

What is calcium phosphate formula? Ca3(PO4)2 What is phosphate formula? PO₄³⁻ Is phosphate harmful to humans? Although phosphate is not harmful to humans, anthropogenic, or man-made, inputs of phosphorus are well known to have a significant impact on ecosystems, and can damage the health of rivers and lakes (known as eutrophication). What is the chemical […]

How much water do I put in pressure cooker for meat? When you use a pressure cooker, you need to have enough liquid in the pot for it to come up to pressure and cook the food properly. The rule of liquids in pressure cooking is to always add at least 1 cup of liquid […]

What is overweight for a 13-year-old? For example, a 7-year-old boy who is 3 feet 11 inches (119 cm) tall would have to weigh at least 56.9 pounds (25.8 kg) ( BMI = 17.9) to be considered overweight, and a 13-year-old girl who is 5 feet, 3 inches (160 cm) tall would be considered obese […]

How often should I run intervals? Watson suggests keeping the frequency at once per week for both and try to — at the very least — leave at least two days between intervals and long runs. “Otherwise, you may overdo it and suffer from burnout, fatigue or injury,” he says. “This will also allow your […]

Which type of light is more likely to dry out sunscreen? ultraviolet light Can light from the sun cause visible ink? Light can only change things by warming them up, so it cannot make the ink become visible. Light from the sun can pull energy out of the ink, causing it to become visible. How […]