If chemical weathering causes rust, then what causes rust? Answer choices: - a pathogens - Roundworms - flow of electrons - dust - thunder - an amoebae - chemical weathering - skin
chemical weathering

(Question)
If clusters form around hydrothermal vents to ensure survival, then how is survival ensured around hydrothermal vents? Answer choices: - heat produced - Eating a lot - Reproducing quickly - biological diversity - vegetation - Being in a cluster - Staying far apart - hydrate their cells
(Answer)
Being in a cluster

Ques: If grapevines shed their leaves seasonally each year, then what kind of plant would shed its leaves each year? Answer choices: - it needs them - grapevines - burning coal - warm-blooded - When it's cold - white - heat or cold - homogenous
Ans: grapevines

(Q).
If weathering causes a river to become deeper and wider, then weathering causes what to become deeper and wider? Answer choices: - a landslide - Sediment - a mountain - a volcano - soils - rock - flooding - a river
(A).
a river

Ques:If specialization occurs when competing creatures evolve as the environments change, then specialization occurs when competing creatures evolve as the what? Answer choices: - habitats grow - salamanders - animals develop - times change - It helps them survive - principals of aerodynamics - environments change - remains of prehistoric life

Ans:environments change

Ques: If nitrogen is found in most molecules, then _is found in most molecules.? Answer choices: - glucose - Gold - Energy - food - Polonium - Nitrogen - Helium - heat energy
Ans:
Nitrogen