Explanation:
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The answer is A. Decreased pH levels. A substance having a pH value less than seven is considered to be acidic. Increases in the concentration of these gases from the use of fossil fuels leads to more acid precipitation, lowering the pH of aquatic environments. Plant life and soil can also be affected by acid rain. Buildings and other infrastructure can be damaged.
Explanation:
In biotechnology, several tools have been created to solve practical issues faced within society- one such tool is genetic engineering. Genetically modified organisms (GMs) with their DNA changed or transformed through genetic engineering methods usually GMOs include modifications in DNA through the incorporation of genes from all creatures such as plants, fungi, viruses and livestock.
These are referred to as transgenic organisms, which contribute to several innovations by increasing the nutritional value of foods and improving global food security which is the availability of food for the entire population.
- GM crops are believed to be more robust in nutritional value and taste, and may be altered to boost the nutritional profile. For example, Golden Rice,a modified staple, is thought to be the solution to preventable cases of blindness caused by vitamin A deficiency. This variety has been altered to biosynthesise β-carotene, a vitamin A precursor.
- Pest infestation leads to significant crop loss every year. These GM crops can increase food security. They are immune to pests and should decrease the use of herbicides and pesticides, thereby growing crop yields and making output more effective.
One of the first GM tomatoes dubbed the Flavr Savr was made for longer shelf life. A gene has been introduced from a different species to slow down the tomato's ripening without altering its taste or nutritional content, as well as reducing its vulnerability to fungal infection.
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Answer: I think B.
Explanation: A and D make no sense, and I just learned about photosynthesis and animals or plants need for water cannot decrease.
