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Start learning 50% faster. Sign in nowMercury is a heavy silvery-white metal that is liquid at room temperatures. It is commonly used in thermometers, nano-meters and barometers, thus it is present in nearly every chemistry and physics lab. Confined in such instruments mercury itself is not likely to cause health problems, but if there is a means for mercury vapor to enter the environment, these highly toxic vapors present a health hazard.
A fluorescent lamp tube is filled with a gas containing low pressure mercury vapor and argon, xenon, neon, or krypton. Fish can absorb methyl mercury from their food and directly from water as it passes over their gills.
The economic product of tobacco plant is
Which of the following statements about seed are correct?
(A). Progeny of nucleus seed is breeder seed.
(B). TZ test is for evaluation of ...
Attraction of water molecules towards soil particles is:
Neurotoxin BOOA or ODAP is present in the seeds of _____
The xylem tissue produced in the spring has larger diameter vessels than autumn produced xylem. The distinctive pattern produced where the two types of ...
SRI system of Rice cultivation was introduced from which country?
Which of the following crop has the longest crop-weed completion critical period?
A farmer harvested a crop with a total biomass of 800 kg, and the grain yield from the crop was 400 kg. Calculate the harvest index of the crop.
When the production of both inter crops is equal to that of its solid planting, it is known as______
The full form of UNCTAD is:
