Q: Which type of weathering causes changes int he rocks materials, chemical or mechanical? Choices: - liquid - nuclear - mineral - chemical A:
chemical

(Question)
Q: What is the only substance on earth that is stable in all three states? Choices: - carbon - mercury - air - water A:
(Answer)
water

Ques: Q: What is the movement of animals from one place to another called? Choices: - evacuation - hibernation - extinction - migration A:
Ans: migration

(Q).
Q: What are organelles made of protein and ribosomal rna (rrna)? Choices: - electrons - carbons - chromosomes - ribosomes A:
(A).
ribosomes

Ques:Q: After fertilization is complete, no other sperm can enter. the fertilized ovule forms the seed, whereas the tissues of the ovary become this? Choices: - plant - wheat - vegetables - fruit A:

Ans:fruit

Ques:Q: What kinds of cells that are important to our physical functioning can atrophy when they are not used? Choices: - reproductive - brain - digestive - muscles A:

Ans:
muscles