++Had dan Keselanjaran++

++ Kesan Rumah Hijau ++

Sumber : http://tntigeofizik.blogspot.com/2011/05/memahami-kesan-rumah-hijau.html

Kesan Rumah Hijau 

1. Menyebab berlakunya pemanasan global
2. Kawasan yang mengalami pencemaran yang teruk akan lebih mengalami suhu yang lebih panas
3. Pemanasan global akibat kesan rumah hijau akan menganggu iklim dunia akibat suhu yang tidak menentu.Flora dan fauna juga turut diganggu aturan atau kitaran hidupnya seperti bunga di kawasan sejuk berbunga lebih cepat dari kebiasaan dan sebagainya
4. Kenaikan suhu dunia akan mencairkan ais terutamanya di Artik.Walaupun mengambil masa,kesannya pastilah buruk kerana pencairan ais ini akan menyebabkan kenaikan paras air laut yang mampu menenggelamkan kawasan rendah termasuklah pulau-pulau kecil di seluruh dunia.Dijangka ais di Artik akan cair kesemuanya pada tahun 2099(wikipedia) 

Punca Berlaku Kesan Rumah Hijau

• Faktor semulajadi seperti letusan gunung berapi yang membebaskan pelbagai gas antaranya sulfur dan oksida.
• Faktor manusia iaitu melakukan pencemaran dan membebaskan pelbagai gas seperti karbon dioksida,karbon monoksida,nitrogen oksida,CFC,halon dan sebagainya.Gas-gas inilah yang membentuk satu layer atau lapisan yang menghalang pembalikan sinaran ultraunggu matahari secara semula jadi.Lapisan ini juga akan menyebabkan gas yang lain turut berkumpul di lapisan ini.

1. Membebaskan gas berbahaya daripada kilang,kereta dan sebagainya.(pencemaran udara) 
2. Menggunakan alatan yang membebaskan CFC . 
3. Penggunaan racun serangga serta baja kimia turut membebaskan gas kesan rumah hijau 
4. Penternakan berskala besar turut membebaskan gas ammonia yang menyumbang pencemaran alam sekitar serta membentuk kesan rumah hijau. 

Sumber : http://www.lovehijau.com/2008/06/kesan-rumah-hijau.html

++ Criteria of An Ideal Teacher ++

Talking about being an ideal teacher, there are variety of views and perspectives on how to be an ideal teacher. The question here is, are we one of the ideal teachers?

In my point of view, be an ideal teacher, we need to be different from other teachers, but not to be weird one. Different here means the ideal teacher is the one with high accountability and be doing outstanding job than other teachers. In addition, an ideal teacher is the one who makes your learning enjoyable. That means the teacher must be able to attract students to pay attention in class. Sometimes, an ideal teacher should also have sense of humor because being funny will able to make learning fun and memorable. But always keep in mind, do not over react like a clown.

An ideal teacher should be an idol for his or her students. Teachers are role models to students. Therefore, an ideal teacher should know how to act, dress, talk, walk or even speak properly in front of their students. In fact, in everything we do, an ideal teacher should do it like how a teacher is supposed to do.

An ideal teacher is the one who can be a motivator to students. With the awareness that the students come from different backgrounds, have different personalities and so on, an ideal teacher should know how to give motivation to each student and encourage them to study. The teacher needs to know that different student require different kinds of motivations as they would definitely face different kind of problems. So, being a good motivator is essential to be an ideal teacher.

Some students trust their teachers, even more than their parents. Therefore, it is the responsibility of an ideal teacher to guide the student as their own child. For example, a teacher guides the students to always keep their behaviour. This is a huge responsibility in educating students to be useful one day. In other words, in school, we are the parents of our students.

In conclusion, there are many ways to be an ideal teacher. There are also many ways on how to be an ideal teacher. We just have to choose which criteria available to us to show to our students. They are the future leaders of tomorrow and we are the people who will make their dreams become a reality.