-Var olan enerji yok olmaz, yoktan enerji var edilemez. -Bir enerji türü başka bir enerji türüne dönüşebilir.
Aşağıdaki olaylardan hangisinde potansiyel enerji, kinetik enerjiye dönüşür?
A)Yukarı yükselen kep
B)Dağdan kayan kayakçı
C)0'dan 5.kata çıkan asansör
D)asfaltta dönen teker

Based on their location in the atmosphere, the layers are able to have their own special characteristics. for example, most weather occurs in the troposphere. what occurs in each of the other layers? (site 1)

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.