Science Facts Set-35

• The saltwater crocodile is the largest living reptile in the world.
• Stars account for 98% of the matter in a galaxy.
• Meninges is a system of membranes that encloses the brain and the spinal cord.
• The axial tilt of the Earth is nearly equal to 23.4°.
• The African bush elephant is the largest living terrestrial animal in the world.

• The concept of atomic number was first proposed by Henry Moseley.
• Hardness of a substance is measured by using Mho's scale.
• Safety Pin was invented by Walter Hunt in 1849.
• The estimated mass of the Earth is 5,940,000,000,000,000,000,000 metric tons.
• The Orangutan is the largest tree-dwelling mammal in the world.