The person is called a wildlife biologist.
Answer:
compounds are substance which can be formed by chemically combining two or more elements.
mixtures are substance that are formed by physically mixing two or more substances
Answer:
Electrons, with a charge of -1.
Explanation:
The nucleus of the atom is composed of protons and neutrons.
The nucleus is where the bulk of the mass of an atom is found.
Electrons orbit the nucleus in various energy levels.
Protons have a charge of +1, neutrons have no charge, and electrons have a charge of -1.
Answer:it will shake up more
Explanation:the mass of it falling and means when open it will explode
Answer:
The depth of the lake is 67.164 meters.
Explanation:
The combined gas equation is,
where,
= initial pressure of gas in bubble= ?
= final pressure of gas = 0.980 atm
= initial volume of gas =
= final volume of gas = 8.00 × V
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above equation, we get:

pressure of the gas in bubble initially is equal to the sum of final pressure and pressure exerted by water at depth h.

Where :
density of water = 
g = acceleration due gravity = 



h = 67.164 m
The depth of the lake is 67.164 meters.