Answer:
option . D
Increase in temperature
is an indicator of a chemical reaction
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Explanation:
We can tell if a chemical reaction has taken place when one or more of the following things happen:
1.There has been a colour change inside the reaction flask.
2. A gas has formed. Usually we know a gas has formed when we can see bubbles.
3.A solid has formed.
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During photosynthesis, plants take the extra carbon from the air, make it into oxygen and then release the oxygen back into the air for us to breathe. The process of photosynthesis can help reduce global warming by removing the extra carbon in the air which allow the air levels in the atmosphere to be more balanced .
Answer:
HYDROELECTRIC BIOMASS AND SOLAR
Explanation:
plz mark brainliest
From the ideal gas equation, we know that PV = nRT
where, P = pressure, V = volume occupied, n = number of moles of gas, R = universal gas constant=0.082L atm mol-1 K-1 and T = temperature.
Given: P = 2.8 atm, V = 98 l and T = 292 k.
Therefore n =

=

= 11.46