General Science Questions

The given statement that "Most pathogenic bacteria are thermophiles" is FALSE.

The presence of vitamin D in the body enhances the absorption of calcium by the intestine.

True, the greenhouse effect is caused solely by human activities such as deforrestation, depletion of natural resources and emission of CO2 by using vehicles, refrigerators and AC's.

The distance between two genes is measured with a unit called map unit. One map unit is equivalent to 1% recombination frequency.

The atmosphere is a mixture of several gases. Nitrogen is the most abundant gas in the atmoshere and oxygen is next to it. It is 78% in the atmosphere and 21% is oxygen. Remaining 1% is all other gases like argon, hydrogen, neon, etc...

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent.

And, water is called the "universal solvent" because it dissolves more substances than any other liquid

It means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients

Secondhand smoke is very dangerous and creates serious health risks to you and your family members. 

Methane is the main component of biogas and natural gas.