The last picture represents a pure compound
Animals, plants, and fungi are eukaryotes.
Milankovitch cycles are based on the variations in the orbit of the Earth around the sun and the precession of the axis of the Earth. These cycles are used to explain the cold and warm climates cycles that characterizes during the ice age.The cycles in this are results of the changes in the orbit of the Earth around the sun which includes it eccentricity, shape, the tilt of the axis and its obliquity.
Some animals die, and that makes the ecosystem tilt its food chain.
Answer:
316.5 cals.
Explanation:
(a) heat needed to change temperature from absolute zero to melting temperature of ice
= mass x specific heat x rise in temperature
= 1 x .5 x 273 = 136.5 cals
b ) heat needed to melt the ice
= mass x latent heat of melting
= 1 x 80 = 80 cals
c ) heat needed to change temperature from melting temperature to boiling temperature.
mass x specific heat x rise in temperature
1 x 1 x 100
= 100 cals
Total heat required
= 136.5 + 80 + 100
= 316.5 cals.