An someone tell me what the answer is??

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

The sea slug that considered to be a photosyntheesizing animal

The moon has a bigger influence on our oceans than the sun because the moon is closer to the earth than the sun the sun is only made of gas and the moon is solid the magnetic attraction of the moon makes gravity stronger the water on the moon attracts the water on the earth