FREE AND STUDY GAMES ABOUT SCIENNCE EXAM

PDF Download

FREE AND STUDY GAMES ABOUT SCIENNCE EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -85 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: processes that break down rock at earth's surface

Answer:

weathering

Question 2: the solid layer of rock beneath the soil is called

Answer:

bedrock

Question 3: c

Answer:

weathered rock particles

Question 4: ice wedging cycle

Answer:

water seeps into cracks, freezes when temprature drops, ice widens cracks, ice acts like a wedge that forces things apart

Question 5: rate of soil formation

Answer:

it is slower in areas that are dry, it is faster with limestone than granite

Question 6: what are the forces of mechanical weathering

Answer:

release of pressure, plant growth, freezing and thawing, abrasion, animal reactions

Question 7: how can soil be lost

Answer:

soil loses its fertility and when topsoil is lost due to erosion Question 8: the type of weathering in which rock is physically broken into smaller pieces is called

Answer:

mechanical weathering

Question 9: example of fungi

Answer:

molds, mushrooms

Question 10: humus

Answer:

dark colored organic material in soil

Question 11: weathering

Answer:

breaking down of rock and other substances at earth's surface

Question 12: what is true about soil

Answer:

soil formation takes a long time

Question 13: carbon dioxide

Answer:

it forms carbonic acid

Question 14: fertility

Answer:

measure of how well soil supports plant growth

Question 15: organic material in soil

Answer:

humus

Question 16: as plants shed leaves, they form a loose layer called

Answer:

litter

Question 17: four soil decomposers

Answer:

fungi, bacteria, worms, other organisms

Question 18: classify soil into groups

Answer:

climate, plant types, soil composition

Question 19: soil with about equal parts of clay, sand, and silt

Answer:

loam

Question 20: why is soil on of earth's most valuable resources

Answer:

soil is one of earth's most valuable natural resources because everythings that lives on land, including humans, depends directly of inderectly on soil

Question 21: why does a permeable rock weather chemicall at a fast rate

Answer:

as water seeps through the spaces in the rock, it dissolves and removes material broken down by weathering

Question 22: list soil particles from largest to smallest

Answer:

gravel, sand, silt, and clay

Question 23: oxygen weathers rock through a process called

Answer:

oxidation

Question 24: soil organisms that turn dead organic matter into humus are called

Answer:

decomposers Question 25: the loose weathered material on earth's surface in which plants can grow is

Answer:

soil

Question 26: bedrock

Answer:

solid layer of rock beneath the soil

Question 27: how can plants prtoect soil from wather erosion

Answer:

plants break the force of falling rain, and plant roots hold thhe soil together

Question 28: living organisms

Answer:

lichens are one example