Good morning all, Alhamdulillah by the grace of Allah the Almighty God, now I can stand here in front of you all. At this moment we can meet in good condition. Now I will tell you about "The importance of protecting the environment"
Lingkungan Hidup
Plants, people, animals and the environment are interdependence. Plants need a good environment for growing, animals need plants to eat, and human need everything to survive. Everything went as usual until the human who destroying it. No one of living things on the earth who can destroying it except the human.
Globalization may already be familiar to you . Globalization can accelerate the rate of economy anywhere. Technology developed over the years become a tool that can easily human works. Even to support it many new technologies are born for example a computer. Unfortunately, the speed of current technological improvement not followed by protecting awareness of surrounding environment. Massive oil drilling caused by the human vehicle is increasing along with increasing human populations from year to year. Finally, the waste produced from the vehicles, become one of the main factors polluted air around us. A lot of environmental damage that we often hear, for example, global warming ,acid rain, greenhouse effect, environmental pollution and so on.
The greenhouse effect caused by excessive carbon dioxide gas and causes global warming makes the earth hotter. The next phenomenon is acid rain, although it can prevent global warming but acid rain is more dangerous. humans are the main causes ! Start From now let's keep our environment for our grandchildren one day later. because no matter how small work you do, will be felt by our children and grandchildren one day later.
1. Antena dan Tower Antena adalah perangkat listrik yang mengubah tenaga listrik menjadi gelombang radio, dan sebaliknya. Biasanya, digunakan dengan pemancar radio atau penerima radio. Dalam transmisi, pemancar radio memasok frekuensi radio arus listrik berosilasi ke terminal antena, dan antena memancarkan energi dari arus gelombang elektromagnetik (gelombang radio). Dalam penerimaan, antena memotong beberapa kekuatan gelombang elektromagnetik untuk menghasilkan tegangan kecil di terminal. Tegangan ini diterapkan ke penerima yang akan diperkuat. Antena adalah komponen penting dari semua jenis peralatan yang memanfaatkan radio. Ini termasuk: siaran radio, siaran televisi, radio dua arah, penerima komunikasi, radar, ponsel, dan komunikasi satelit; serta perangkat lain seperti pembuka pintu garasi, mikrofon nirkabel, bluetooth perangkat diaktifkan, jaringan komputer nirkabel, monitor bayi, dan tag RFID pada barang dagangan. Antena juga dapat...
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