Chemistry help please! Multiple choice.?

L

Linda W

New member
Airplanes usually fly approximately 20 miles above the ground. What layer of the atmosphere is this?

a.troposphere
b.ionosphere
c.ozone layer
d.stratosphere


all of the following are physical sources except

a. wood
b.hydroelectic
c. geothermal
d. wind

all of the following are renewable sources of energy except..

a. wood
b. municipal waste
c. ethanol from plants
d. natural gas

the pollution of water with heat by nuclear power plants for aquatic life is what type of pollution

a. the greenhouse effect
b. toxic waste
c. thermal
d. pyrolysis

all of the following are carbs except..

a. sugar
b. cellulose
c. starch
d. glycerin

molecules that serve as building blocks of plant and animal tissue are known as..

a. carbs
b. proteins
c. lipids
d. nucleic acids
 
1)a
2)d physical means which u can see and touch so yep its d
3)d
4)d Pyrolysis is the decomposition of organic matter by heating without oxygen. It can be carried out in a vacuum, or using water
5)d
6)b
 
Back
Top