Donald Trump building a wall.
They give more/additional information about a certain topic of research.
They help learns to know what they may expect to see on the field
Answer:
forest crops: Crops like ginseng, goldenseal, shiitake or other mushrooms, and decorative ferns are used or sold for medicinal, culinary, and ornamental uses.
The lunar eclipse happens when the Moon goes through the Earth's shadow. Earth dependably has a shadow, which is made by the Sun. On those uncommon events when the Moon, Earth and the Sun are altogether arranged perfectly, the Moon goes through this shadow.This would happen each full moon if the Moon circled around the Earth in an indistinguishable plane from the Earth circles around the Sun.
