Why are there dew drops on leaves in the morning?It rains every morning before the sun rises.Water in the air gets cold and turns into liquid.Plants excrete water during the cold night and early morning.Insects put water on leaves to soften the leaves for chewing.

The dew drops on leaves in the morning are a result of a process called condensation. Here's a step-by-step explanation:

1. During the day, the sun heats up the earth and the air above it. This causes water from the earth's surface to evaporate into the air, increasing the amount of water vapor in the air.

2. At night, the earth and the air above it cool down. The cooler air can't hold as much water vapor as the warmer air, so some of the water vapor condenses into tiny droplets of water.

3. These tiny droplets of water form on surfaces that are cooler than the air around them. Leaves are often cooler because they radiate heat to the sky and because they are cooled by transpiration (the evaporation of water from the plant's surface).

4. In the morning, we see these droplets of water on the leaves as dew.

The other explanations you provided are not typically the main reasons for dew formation. It doesn't necessarily rain every morning before the sun rises, and while plants do excrete water, it's usually not in large enough amounts to form dew. Insects may put water on leaves, but this is also not a main contributor to dew formation.