After a meal, the hepatic portal vein has a very high concentration of glucose. Why?

___________ has a very high melting point.

Suppose there were plants that had a high concentration of Chlorophyll-b, but lacked chlorophyll-a, would it carry out photosynthesis? Then why do plants have chlorophyll-b and other accessory pigments?

Which ray has high ionising power? Why?

While making dry fishes at home high salt concentration is applied. Why ? Name the phenomenon.

A tank contains 5000 litres of pure water. Brine (very salt water) that contains 30 grams of salt per litre of water is pumped into the tank at a rate of 25 litres per minute. The concentration of salt water after t minutes (in grams per litre) is C(t)=(30t)/(200+t) .What happens to the concentration as t to infty

A tank contains 5000 litres of pure water. Brine (very salty water) that contains 30 of salt per litre of water is pumped into grams the tank at a rate of 25 litres per minute. The concentration of salt water after t minutes (in grams per litre) is C(t)=(30t)/(200+t) .What happens to the concentration as trarrinfty ?

Shown an arrangement to measure the emf (epsilon) and internal resistance r of a battery. The voltmeter has a very high resistance and the ammeter also has some resistance.The voltmeter reads 1.52 V when the switch S is open.When the switch is closed the voltmeter reading drops to 1.45 V and the ammeter read 1.0A Find the emf and the internal resistance of the battery.

Assertion: The lightening conductor at the top of a high building has sharp ends. Reason : The surface density of charge at sharp points is very high. Resulting in setting up of electric wind.