Women have two x chromosomes, compared to men who have one x and one y chromosome. Because of the two x chromosomes, one of them can override the other. In men they only have one x and one y, they don't have the extra x chromosome to override the allele.
<span>Larger stars burn through their Hydrogen reserves faster, fusing Hydrogen into heavier Helium.
Also, to maintain their phenomenal heat, they have to do this to maintain internal pressure and therefore the fusion that powers them, they have to burn quickly to replace the excess heat they radiate away into outer space.
Currently our sun radiates away 4 Million Tonnes of mass every second, that only amounts to a miserly 0.0000001% of its entire mass. Imagine how much mass larger and larger stars lose every second.
The smallest stars, born at the red dwarf level can burn for trillions of years (at closest estimate). Compared with the Supergiant's, the big boys who were born in abundance during the birth of the universe burn out and explode in supernovae after only around 200 Million years. A whisper compared to the life of our Sun which is estimated to run out of fuel after at the ripe of age of 10 billion years.</span><span>
</span>
Coal refers to a sedimentary rock, which is produced in the regions that were once thriving with terrestrial forests with enough water that led to the formation of marshy habitats.
Marine shells are witnessed in the environments of the ocean, that is, mostly the undisturbed deep-sea environment.
Red beads refer to the sedimentary rocks, which are clastic in nature and terrestrial in origin. They are generally made up of sandstones, siltstones, and wackes. It is signified by the presence of red color, which is due to the existence of a high concentration of ferric oxides.
Marine sandstones could be shallow marine or deep marine in origin. Even the coastal environment is appropriate for the generation of marine sandstone.
1. Ans: Have GM crops caused damage to the environment? Crops do not damage the environment simply because they are GM. Some farming practices, such as the overuse of herbicides resulting in the excessive eradication of wild plants from farmland have been shown to harm the environment.
2. Ans: In their conclusion, the authors stated that 21 years of field data analysis revealed GMO corn offers farmers increased grain yields, improved grain quality, and a decrease in insect damage. They also note modest or no effect on numbers of non-target insects.
3. Ans: A few highlights from this comprehensive review are: Crop biotechnology has contributed to significantly reducing the release of greenhouse gas emissions from agricultural practices. This results from less fuel use and additional soil carbon storage from reduced tillage with GM crops.
4. Ans: A major environmental concern associated with GM crops is their potential to create new weeds through out-crossing with wild relatives, or simply by persisting in the wild themselves. The potential for the above to happen is assessed prior to introduction, and is monitored after the crop is planted as well.
The answer is true I’m pretty sure