Alaser is used for producing light, and furthermore, such laser light is polarized. Given these facts, what are lasers among the following options: - energy - inactive - Firecrackers - polarized - heated - electricity - magnetized - irregular
polarized

(Question)
An animal requires air for survival, and plants help make oxygen for the air. Given these facts, an animal requires what for survival among the following options: - a leash - rocks - chemicals - stamina - plants - proteins - food - fossil fuel
(Answer)
plants

Ques: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, and acid rain kills trees . Given these facts, what does gases from burning coal and oil dissolving in water in the atmosphere do among the following options: - chemical changes - saves trees - forms diamonds - vaporization - heating liquids - kills trees - weathering - Pollution
Ans: kills trees

(Q).
Ameasuring cup is used for measuring the volume of substances, and how is volume measured Vital capacity is a volume measurement. Given these facts, a measuring cup is used for measuring among the following options: - vital capacity - heat energy - Temperature - barrel-shaped - layers of fat - body water - all liquids - deoxyribonucleic acid
(A).
vital capacity

Ques:Prokaryotes are single-celled organisms that lack a nucleus, and prokaryotes All bacteria are prokaryotes. Given these facts, what are single-celled organisms that lack a nucleus among the following options: - Leeuwenhoek - orchids - Most plants - barnacles - PDAs - bacteria - cacti - ferns

Ans:bacteria

Ques: Ejaculation occurs when muscle contractions propel sperm from the epididymes, and an ejaculation occurs as the muscles around the prostate gland and the penis contract. Given these facts, what happens when muscles around the prostate gland contracts among the following options: - preventing heat transfer - The bending of a ray of light - Generating heat - Warm air moving into cold air - Sperm leaves the epidiymes - heat produced - Release energy - rapid expansion
Ans:
Sperm leaves the epidiymes