Question 1 People try to conserve some resources, like fossil fuels, because they are not replaceable. Why can’t these resources be replaced?

A: They must be transported long distances

B: Processes that make them take a long time

C: No one can afford to buy more of them

D: It is impossible to extract more from the earth

question 2
People move into and begin living in an area that previously had no human activity. What will most likely be the effect on the amount of water?

A: Water will be more evenly distributed in the area

B: Most of the fresh water in the area will be converted to salt water

C: The amount of fresh water suitable for drinking will increase

D: There will be less available for other living things

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.