SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is the Sun considered the ultimate energy source?
A
The Sun is the center of our solar system.
B
The Sun provides energy for the water cycle and plants.
C
The Sun is limited in the amount of energy released daily.
D
The Sun rises and sets each day as seen from Earth.
Explanation: 

Detailed explanation-1: -It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.

Detailed explanation-2: -Sunlight is essential for photosynthesis. Sunlight provides energy for the reaction between carbon dioxide and water to produce glucose and oxygen. Hence solar energy is considered as the ultimate source of energy.

Detailed explanation-3: -The sun heats the earth’s surface and the Earth heats the air above it, causing wind. Water evaporated by the sun forms clouds and rain to give us flowing streams and rivers. Both wind and flowing water (hydropower) are sources of energy. So you see, the sun is the source of many kinds of energy found in nature.

Detailed explanation-4: -Energy from the Sun fuels life on Earth Sunlight allows plants, algae and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates. This process is the fundamental source of organic material in the biosphere.

There is 1 question to complete.