1. How does light enable us to see non luminous objects? ( Keywords - Light, bounce back to our eyes, sensation produced by this energy , helps brain to see)
2. How light is important in our life? ( Keywords - Absorbed by plants to carry photosynthesis, food made by photosynthesis used by animals, maintains temperature on the earth, able us to see things around us)
Answers
1. Non-luminous objects reflect the light falling on them and the reflected light are sensed by the eye and thus we are able to see non-luminous objects.
2. Light is the main source of energy for all living organisms. Plants, main strainers of life, are crucial in this conversion process and need light for photosynthesis that enables them to make their own food and food for others. And, perhaps more importantly, photosynthesis produces oxygen too!
Answer:
1) Non-luminous objects reflect the light falling on them and the reflected light are sensed by the eye and thus we are able to see non-luminous objects.
2)
Explanation:
Light is that something that produces in us a sensation of vision. Every morning when we wake up we feel happy when we see a bright and sunny day. Light is magical, not only that it helps us to see things around us and enjoy the beauty of nature it also helps to sustain life on earth through the process of photosynthesis , if there were no photosynthesis, surely there would not be life on earth. Photosynthesis enables plants to make their own food, which in turn helps the supply of oxygen, which is very much needed by humans for respiration. Carbon dioxide is also being removed by plants, again through the process of photosynthesis. We therefore, owe our credit to light in our daily life.