I need help with these questions I have put 2 photos to show the questions and text

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Select the correct answer. which scenario describes unethical lab behavior? a. danny stores the chemicals required for his experiment in flasks and beakers. b. anna publishes the results of her experiment on the growth rate of saplings. c. jason repeatedly runs an experiment until he gets the results he desires. d. mia records her observations of an experiment precisely and accurately. resetnext

Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.