Which of the following is true about the weight of an object?
a. it remains same for the object.
b. it cannot be measured accurately.
c. it is a force acting on the object.
d. it is always less than the mass of the object.

How have the greenhouse gasses increased from the year 2000 to 2018

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?