Answer:
Using aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3).
Explanation:
Let's talk about available options and how can they be true or false:
If we talk about option A, it says that radioactive materials cause the addition of methane in ground. As we know that methane is a gas that is present in the atmosphere since its lighter nature. Therefore, the pollution due to methane seeping into the ground do not makes a reasonable cause for pollution.
If we talk about option B, it says that Burning fossil fuels causes water pollution, as we know that burning of fossil fuels is a serious cause of air pollution because it increases the amount of harmful gases in the air. But in option, it is mentioned that fossil fuels cause water pollution which again is not a reasonable cause.
If we talk about option C, it says that deforestation causes acid rain by decreasing carbon dioxide (CO2) in the atmosphere. However in actual deforestation in the cause of enhanced amount of CO2 emissions which in turn cause the acid rainfall. Therefore, the option is clearly wrong.
If we talk about option D, it says that aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3). As we know that aerosol sprays are the leading cause of damaging ozone layer and causing big holes in it therefore there is a lot of focus now adays by environmentalists to minimize their usage.
Hence D is correct option.
Hope it help!
Answer:
Explanation:
Photosynthesis is going to transform H2O and CO2 into O2, and C6H12O6
The carbon from the carbon dioxide will become organic matter in the form of glucose (food) which will be taken in by animals that eat it. When the animal breaks down the glucose the CO2 is then released back to the atmosphere via cellular respiration
The liver is the most important organ and helps break down fat and produce energy.
Answer:
Amniocentesis is an invasive method that involves the aspiration of 10-20 ml of fetal water through the abdominal wall under ultrasound-guided control. In most cases, the procedure is performed around the 16th week of gestation. The fetal water sample contains fetal cells, mostly cells of fetal skin and the epithelium of the urinary tract.
Chorionic Villus Sampling (CVS) biopsy is performed between weeks 11 and 12 of gestation. During biopsy, with ultrasound guidance, the tissue of the chorionic fossa is aspirated mainly across the abdomen (transabdominal pathway). The biopsy specimen is of fetal origin and belongs to the outer layer of blastocyst cells or the trophoblast (outer layer of the placenta). Very often, the biopsy specimen contains tissue of the decidua (mucous membrane of the uterus) that is of maternal origin, and it is necessary to remove the maternal tissue before any treatment of the sample.
Explanation:
The amniocentesis procedure carries a risk of miscarriage of 0.5-1%. After aspiration of the fruit of the water, the sample is centrifuged to separate the cells from the amniotic fluid. Separate cells are seeded on a nutrient medium (cell culture) that stimulates cell growth. After about 14 days, the cell culture is further used for various genetic or biochemical analyzes such as karyotyping.
The advantage of chorionic biopsy is the amount of biological material, which is sufficient for the whole a number of different laboratory procedures. Also, a great advantage is the timing of the procedure as it allows diagnosis in the first trimester of pregnancy, but the chorionic biopsy procedure itself carries a risk of miscarriage of 1-2%.
PPi is the product of the polymerizarion reaction catalyzed by DNA polymerase. This reaction also requires a template DNA strand and a primer with free 3' end. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.