What does it indicate if BOD is high? Higher BOD indicates more oxygen is required, which is less for oxygen-demanding species to feed on, and signifies lower water quality. Inversely, low BOD means less oxygen is being removed from water, so water is generally purer. What is COD and BOD of water? COD or Chemical […]
How do astronomers detect dark matter?
How do astronomers detect dark matter? Galaxy clusters are particularly important for dark matter studies since their masses can be estimated in three independent ways: From the scatter in radial velocities of the galaxies within clusters. From X-rays emitted by hot gas in the clusters. Is dark matter invisible? Scientists have not yet observed dark […]
What happens if you drive over 50 on a spare?
How do I get a uniform grant?
How do I get a uniform grant? Who is eligible for financial help with school uniforms? Income support. Jobseeker’s allowance (income based) Child tax credit – provided you are not entitled to working tax credit. Employment support allowance (ESA) State pension – this benefit must be your sole source of income. Do kids have to […]
What colors are the parents shown in Punnett Square B?
What colors are the parents shown in Punnett Square B? What color are the parents shown in the punnet square B? The white guinea pig is homozygous (bb) and the black guinea pig is heterozygous (Bb). If the black guinea pig parent were a homozygous (BB) then there would be no chance for the offspring […]
What is quantum number in chemistry?
What is quantum number in chemistry? The set of numbers used to describe the position and energy of the electron in an atom are called quantum numbers. There are four quantum numbers, namely, principal, azimuthal, magnetic and spin quantum numbers. The values of the conserved quantities of a quantum system are given by quantum numbers. […]
What is the difference between a force multiplier and a distance multiplier?
What is the difference between a force multiplier and a distance multiplier? Levers can be force multipliers, when they increase the force that is put in (the effort). They can be distance multipliers if they make the load move further than the effort. The amount the force or distance is multiplied depends on the distances […]
What is P-type semiconductor with example?
What is P-type semiconductor with example? A p-type semiconductor is a type of semiconductor. When the trivalent impurity is added to an intrinsic or pure semiconductor (silicon or germanium), it is said to be a p-type semiconductor. Trivalent impurities such as boron (B), gallium (Ga), indium (In), aluminium (Al) etc. are called acceptor impurity. Is […]
Which country has the smallest carbon footprint?
Which country has the smallest carbon footprint? Tuvalu What industry is the biggest polluter in the world? According to the report, fashion is responsible for 92 million tons of solid waste per year globally, representing 4% of the 2.12 billion tons of waste we dump globally each year. That is more than toxic e-waste and […]
What if microscope was not invented?
What if microscope was not invented? Microscopes are very important. Diseases would have been more common without them. We would not know as much about egg cell development without them. Our world would be very different in a bad way without the invenion of the microscope. What is the world’s largest cell? The largest cell […]