In a 2009 study, presented by the national academy of science, 97% of climate scientists agree that human activity is causing global warming." which of the following statements is best supported by this study? a. most climate scientists dispute the theory of human influence on global warming. b. global warming is most likely alarmist propaganda based on false data. c. global warming is definitely not caused by human influence on nature. d. most climate scientists believe that there is evidence that explains global warming.

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

I’m stuck on this question cuz i’m stupid sksksksk