Answer:
m = 1.5 gram
Explanation:
Given that,
Density of protein gelatin, d = 3 g/L
The volume of protein gelatin, V = 0.5 L
We need to find the mass of the protein gelatin. The density of an object is given by :
d = m/V
Where
m is mass

So, the required mass is 1.5 gram.
Answer:
Flashlight
Explanation:
A flashlight gives out heat
hope this helps...
Answer:
Changes in environment, food source changes and disease?
Explanation:
I dont know what the answer choices are
Answer: Sunlight.
Explanation:
Photochemical smog is formed when primary pollutants such nitrogen oxides and volatile organic compound (VOC) react with sunlight, forming a brown haze above cities.
Photochemical smog can only occur during the day.