Besides, low-carbon lifestyle can cut down the release of carbon dioxide which contributes greatly to the greenhouse effect. As a result, we are supposed to shoulder the responsibility to live a low-carbon life. First of all, travelling by...
5. Process for the manufacture of diazoamino compounds by diazotizing an amine and condensing in a medium which must not be strongly acid with another amine, the one amine being a primary aromatic amine which does not contain a solubilizing group and the other amine being a secondary amine ...
Scientists reveal new research identifying a mechanism by which Earth-warming carbon is pulled deep into the Southern Ocean, and locked away; scientists claim this process may be threatened by global warming Illegally excavated Buddhist relics that were recovered by Pakistani police were stolen from a...
My experience on the Nina helps testify ( 证实 ) my long-held belief that students stay interested, ask better questions, and engage(参与 )in higher-order thinking tasks when they are actively engaged in the learning process.The students who boarded the Nina came as passive learner...
The starting weight of all of the compositions 10 was selected in such a way as to permit a gasket sheet of thickness 2 mm to be drawn off after the calendering process had ended. In each case, 30 kg total weight of the preferred compositions 1 to 3 were processed by rolling to give...
Initially a single evaporation process was used for the concentration, but volatile constituents of the juice escaped with the water, le For which of the following can the composition vary? a. Pure substance b. Element c. Both homogeneous a...
What forms when carbon dioxide dissolves in water? Which type of substance gives off hydroxide ions when dissolved in water? What compound produces hydroxide ions when dissolved in water? What is the term for a compound that releases hydroxide ions when dissolved in water? What is the chemical ...
UBS's change is "part of a multi-year process to reduce exposure to carbon-related assets and develop methodologies that enable more robust and transparent disclosure of climate metrics," says a spokesperson for UBS. "UBS's exposure to fossil financing fell so much from 2016-2020 partly becaus...
2,2-dimethylchromene derivatives, process for their preparation and pharmaceutical compositions in which they are present United States Patent 5391751 Abstract: The present invention relates to 2,2-dimethylchromene derivatives of the formula: ##STR1## in which Z represents a halogen atom or a cyano...
nuclear plants in 1991 saved 145 million tons of coal, 265,000 barrels of oil, and 1.7 trillion cubic feet of natural gas, and in the process they keep about 430 million tons of carbon dioxide out of the atmosphere.Emissions from burning fossil fuels (especially carbon dioxide) trap heat ...