In simpler terms, the Big Bang theory says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today. In the first second after the universe began, the surrounding temperature was about 10 billion degrees Fahrenheit (5.5 billion Celsius). The cosmos contained a vast array of fundamental particles such as neutrons, electrons and protons. These decayed or combined as the universe got cooler. Over time, however, the free electrons met up with nuclei and created neutral atoms. This allowed light to shine through about 380,000 years after the Big Bang.
1. So that during the experiment, you don't have to waste your time in figuring out what to do.
2. So that the instructions are clear and if there are any misconceptions, you can clear them out BEFORE the experiment.
3. To avoid trouble or risky scenarios.
4. It allows replication, where other scientist perform your experiment to ensure your findings are correct.
5. To avoid error, such as adding too much of salt into water.
Riparian zones are attractive to livestock because they contain lush vegetation that livestock like to eat.
Riparian zones are the transitional areas between land and a water body such as rivers, streams, or lakes. Riparian zones are attractive to livestock because they contain lush vegetation; a vegetation that has a greater variety of plant species. Shrubs such as willows, herbaceous and aquatic plants, such as rushes and sedges, and trees can be found in riparian zones.