Answer:

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. ... Solar energy is essential to agriculture—cultivating land, producing crops, and raising livestock.

2.Shadows are formed because light travels in straight lines. ... Shadows are formed when an opaque object or material is placed in the path of rays of light. The opaque material does not let the light pass through it. The light rays that go past the edges of the material make an outline for the shadow.

3.Nothing is more important to us on Earth than the Sun. Without the Sun's heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.

Answer:

1. The sun is important because it helps us to see. It creates light and heat.

2. Shadows are formed because an object is blocking and absorbing the light.

3. I realized that without the sun there will be no light and heat. All creatures might be extinct without the sun.

4. I found that sun's heat and light is important to living things because it helps the plants to create food by the process of Photosynthesis. It make  all living things warm.

Hope it helps po