Explain how a chemical reaction occurs according to the collision model. Explain the meaning of the orientation factor in this model. Explain in detail how urea works in our body and the urea cycle. Describe the Raschig process. Is the process of a meteor falling to Earth spontaneous or non...
Explain the normal functioning of the following: 1. Water cycle 2. Carbon cycle 3. Nitrogen cycle 4. Phosphorus cycle Which element is playing an important role in nitrogen fixation? Why N2 content is kept constant in the biosphere?
In parts of the Maritime Continent, Brazil, Columbia and Ecuador, between 70% and 80% of precipitation variability can be explained during at least one season (Fig. 1). In parts of Australia in SON, the Sahel in JJA, Europe in DJF and southeast Asia in MAM, about half of ...
In a washing machine, the same principle is used to spin water from clothes at the end of the wash cycle. As the drum spins at high speed, the clothes fling against the edge of the drum and the water they contain is forced out through the drum's tiny holes. The same idea proved ...
Describe the uses of polymerase chain reaction (PCR), and the function of template, primers, and DNA polymerase in PCR. How does RNA differ from DNA? Explain how RNA is converted into cDNA, and cDNA is converted into mRNA. Explain the r-RNA and...
Evaluate: This is the last stage in the 5E procedure. At this stage, students are encouraged to assess themselves, to re-evaluate the process of participating in the activity, and gain scientific knowledge about the STEAM topic; at the same time, the teacher can also evaluate them by observi...
Spiders use venom to subdue their prey, but little is known about the diversity of venoms in different spider families. Given the limited data available for orb-weaver spiders (Araneidae), we selected the wasp spider Argiope bruennichi for detailed analysis. Our strategy combined a transcriptomics...
A single water drop is about 20,000 times bigger than the holes in microporous GORE-TEX, so there's no way it's coming through.That, then, is the clever little secret of GORE-TEX—one of the most amazing materials in the modern world. But you could say it's actually the clever ...
Large variations in the growth of atmospheric methane, a prominent greenhouse gas, are driven by a diverse range of anthropogenic and natural emissions and by loss from oxidation by the hydroxyl radical. We used a decade-long dataset (2010–2019) of satellite observations of methane to show that...
. A change in the proportion of land and water covering Earth’s surface . The cooling effect of the oceans’ low surface albedo . A change in the atmosphere that lowered Earth’s surface temperature . A continuing cycle of radiation reflection and ice growth3、Why does the professor talk ...