8. lightning heats the surrounding air to a. 3,000°c.
b. 30,000°c.
c. 300°c.
d. 300,000°c.
9. which of the following is an example of a long-term climatic change? a. blizzard
b. summer
c. ice age
d. winter
10. which of the following is not a layer of the atmosphere? a. mesosphere
b. lithosphere
c. exosphere
d. thermosphere
11. the greenhouse effect is a result of
a. consumption and radiation of energy in the atmosphere.
b. absorption and radiation of energy in the hydrosphere.
c. absorption and radiation of energy in the atmosphere.
d. consumption of fruits and vegetables that produce a biofuel.
12. which of the following is not a natural cause of climatic change? a. solar activity
b. earth's tilt
c. human activity
d. volcanic activity
13. which statement best describes saturation? a. saturation refers to the total rainfall for a year.

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)

What is the most appropriate method of gaining weight (muscle mass)

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.