Answer:
It ended during the Mesozoic era
Explanation:
The Cretaceous period is the last of three periods of the Mesozoic era. The other two are Triassic, Jurassic.
During the Cretaceous period, more birds and plants appeared, as did new types of dinosaurs. Also, the climate on the planet was getting colder.
The entire duration of the Cretaceous period was approximately 79 million years.
The crust is the part you walk on, and it's the surface of the earth.
Answer:
We know that sin(x) = cos(90°-x). In that sense, we know that:
sin(25°) = cos(90°-25°) = cos(65°)
If you put both values in a calculator, we get that:
sin(25°) = 0.4226
cos(65°) = 0.4226
Therefore: Sin 25° = Cos 65°
<u>Answer:</u>
The narrator's mood is determined by the state of the relationship with his love.
<u>Explanation:</u>
In the given stanzas from the poem ""Ballad"" by Paul Laurence Dunbar ,it determines the narrator's mood in which state of the relationship with his love which can be shown as in the first stanza the author writes about all the nice and happy things in life as his love life is going well and good and happy
whereas it changes to a doubt for love and sadness and doubt is expressed as his relationship isn't in a good happy phase.