Explain the difference between biotic and abiotic

How does energy from the earth become part of out bodies?

Which of the following was not part of democritus' theory of matter? 1. matter consists of tiny particles called atoms 2. atoms retain their identity in a chemical reaction 3. atoms are indestructible 4. atoms are indivisible

Why do X-Ray technicians stand behind a shield when giving X-Rays to patients? a. because large doses of X-Rays cause blindness b. because they can more accurately see the patient's bones c.

Propanone is more soluble in water compared to 3 hexanol mainly because the propanone?

A substance is said to be what when it when it is able to remove sufficient water from the air to dissolve completely and form a solution

A chemist has evolved a certain substance in water the chemist knows that more the substance could be dissolved into the water before it stops dissolving therefore the current solution is

Be sure to answer all parts. The combustion of a 40.0-g gaseous mixture of H2 and CH4 releases 3766 kJ of heat. Calculate the amount of each gas in grams.

Global warming can be slowed or stopped

Since 1915, chemical fertilizer has been mass produced for farming. Which of the following is the main water pollution problem caused by chemical fertilizer?

Relative dating will tell you exactly how old a rock layer is. True False