State true or false. If false, give the correct statement. The lightness of heaviness of a body is due to volume

State true or false. If false, give the correct statement. Argon is mono atomic gas.

State true or false. If false, give the correct statement. Water is denser than kerosene.

State true or false. If false, give the correct statement. 1 Light year = 9.46 xx 10^5m .

State true or false. If false, give the correct statement. Density of water is 100kg//m^3 .

State true or false. If false, give the correct statement. Neptune is 30 AU away from sun.

State true or false. If false, give the correct statement. A ball of iron floats in mercury.

True or False. If false give the correct statement. Plants cause soil erosion.

True or False. If False, give the correct statement. Air is not compressible.

State true or false. If false, give the correct statement. One light year is defined as the distance travelled by light in vacuum during the period of one year.

True or False. If False, give the correct statement. Air is a pure substance