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frez [133]
2 years ago
7

The energy necessary for photosynthesis to take place is provided by

Chemistry
2 answers:
AfilCa [17]2 years ago
7 0

Answer:

The Sunlight

Oxegyn

Heat in soi

Explanation:

valina [46]2 years ago
5 0

Answer:

sun, air, and heat.

Explanation:

hope this helps!

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nata0808 [166]

Answer:

A small positively charged nucleus surrounded by revolving negatively charged electrons in fixed orbits

7 0
3 years ago
Need help please help
zimovet [89]

Explanation:

a)phenotype= 100% big

b) genotype=1:2:1 (FF-25%, Ff-50%, ff-25%)

phenotype=3:1 (big=75%, small= 25%)

7 0
3 years ago
How many moles of nitrous oxide gas (N2O) is contained in 20.0 L balloon at a pressure of 1.09 atm and a temperature of 298K? Ro
prohojiy [21]

Answer:

There are 0,89 moles of nitrous oxide gas  in the balloon.

Explanation:

We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol:

PV= nRT ---> n= PV/RT

n= 1,09 atm x 20,0 L /0.082 l atm / K mol x 298 K

<em>n= 0,89212637 mol</em>

7 0
3 years ago
South Florida is surrounded by salt water. The need for fresh
Lady bird [3.3K]

Answer:

Aquifer

Explanation:

Instead of snowcapped mountains that store water in advance of warmer temperatures, most of our drinking water comes from underground "mountains" of porous materials called aquifers which are replenished by rain. The Biscayne Aquifer is South Florida's lower east coast's primary source of fresh water.

3 0
3 years ago
What do nuclear reactions change in the atom?
Ganezh [65]
Nuclear reactions happen inside the nucleus,so it changes the protons and neutrons
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3 years ago
Read 2 more answers
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