If frogs use lungs to breathe air, then what do frogs breathe with their lungs? Answer choices: - gas - CO 2 - fossil fuels - air - nose - O2 - water - CO2
air

(Question)
If looking at the sun has a negative impact on the eyes, then looking at what has a negative impact on the eyes? Answer choices: - Pollution - Allergies - disease - the sun - clouds - sun's heat - the moon - glasses
(Answer)
the sun

Ques: If gravity pulls down objects that have mass on a celestial body, then what causes objects to be pulled down on a celestial body? Answer choices: - power - friction - black hole - wind - gravity - orbit - earth - eclipse
Ans: gravity

(Q).
If changes in the structure of the Y chromosome are implicated in male infertility, then what does changes in the structure of the Y chromosome do? Answer choices: - reproduce - Male infertility - harm them - bending light rays - It expands - allow growth - Plant growth is reduced - Damages them
(A).
Male infertility

Ques:If warm air moving into cold air causes cloudy and rainy weather, then what causes cloudy and rainy weather? Answer choices: - Cold air forming fog - a hemisphere is tilted away from the sun - Warm air near the oceans - Breathing too fast or too slow - Cold winds near the mountains - Warm air moving into cold air - Earth's axis of rotation is tilted - extreme heat and pressure

Ans:Warm air moving into cold air

Ques:If vaccination involves the body's response to a pathogen produces memory cells, then vaccination produces? Answer choices: - memory cells - pathogens - adrenaline - autism - warmth - Energy - rapid expansion - positive

Ans:
memory cells