Answer:
2 sec
Explanation
travel speed is = 10 m/sec
so for 20 meter = 20/10 = 2 sec
Answer:
Law of conservation of energy is one of the basic laws of the Physics.
Explanation:
According to the Law of conservation of energy, the total energy of an isolated system doesn't change, Energy may be transformed from one to another but the total energy of an isolated system remains constant. There have different forms of energy like- kinetic energy, potential energy, chemical energy, thermal energy , electrical energy. the potential energy is converting into kinetic energy in the water falls. When kicking a football, energy is transferred from the body of the kicker to the ball.
The brain controls what you think and feel,how you learn and remember and the way you move and talk. But it also controls things you' re less aware of - like the beating of your heart and the digestion of the your food
Answer: Food storage
Explanation:
Stomach is a small pouch like structure which has the ability to store food temporarily.The storage of the food temporarily takes place in the stomach. The food that we eat reaches to the stomach by the help of food pipe.
Here, the food is stored until it is completely broken down into simpler form and enzymes act on them.
The food is then absorbed in the small intestine. But before this food is temporarily stored in the stomach where all the digestive juices and enzymes come to act on the food.
The correct option is A.
The nature is organized in such a way that, one organism's waste is what the other organism will use as its own resources. For instance, during the process of photosynthesis, the oxygen that is produced as the by product of the photosynthesis process is what humans use to carry out their own breathing process.
