Which best explains why a thick tropical forest filled with large plants typically has a lot of water vapor in the air? The plants undergo transpiration.
The plants undergo condensation.
The plants prevent water from evaporating.
The plants prevent water from becoming runoff.

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes