Question

Q.A. Fill in the blanks.
1. Seed leaves are called_
2. Man is an-
3. The pigeon post system was used over_
years ago.
4._ and _
are paper used in Chinese paintings and
calligraphy.​

Answer 1

Answer:

A: Cotyledons

B: Can be a lot of things but for your question it seems like "Animal" can work.

C: 3000 years. But mind you, the last one being used was in Cuttack, Odisha, India which has been closed in 2008. They're still used in parts in emergency situations.

D: Rice/Xuan/Sumi paper