Questions

The main excretory organs of insects and spiders are Malpighian tubules.

The new governor of Andhra Pradesh is Biswa Bushan Harichandan. He is a senior BJP leader and will succeed ESL Narasimhan, who had held the gubernatorial post in various states for last 13 years which includes 10 years in Andhra Pradesh.

Pressure = (Net Force) / (Applied area) = Newton / square meters

Measuring units of pressure are:

. Pascal
. Bar
. Torr
. Pounds per square inch (psi)
. Standard atmosphere (atm).

Cotton Gin was invented by Eli Whitney in 1793, which is used to separate cotton seeds from cotton fiber.

Hence, it was an important invention because it dramatically reduced the amount of time it took to separate cotton seeds from cotton fiber.

Tom Cat and Jerry Mouse were the two cartoon characters created by William Hanna and Joseph Barbara in 1940.

Plants grow in size both in height and in girth. Enlargement of cells already present cannnot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

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