lesson 7

Question 1

acid rain

Answer 1

emissions from a variety of human activities contain pollutant that cause acid rain

Question 2

what is acid rain consisting of

Answer 2

nitrogen and sulpher containing substances are two of the common pollutant the cause acid rain.

Question 3

effects of acid rain

Answer 3

destroys coatings on leaves, burns organisms skin, increases soil acidity levels as well as may other harmful things to an ecosystem

Question 4

topsoil

Answer 4

the upper most layer in soil containing rock particles, fungi, insects, and worms

Question 5

subsoil

Answer 5

is the layer below topsoil little to none except roots of very large trees and bacteria

Question 6

bedrock

Answer 6

forms the bottom of the soil profile made up of solid rock and water sits above it.

Question 7

loam soil

Answer 7

the most fertile of the soil types. is very loose and good for growing crops

Question 8

clay soil

Answer 8

packed tightly not many air pockets traps water difficult of plants to grow

Question 9

sandy soil

Answer 9

contains sand particles lots of air pockets and drains water easily but also looses nutrients faster

Question 10

acidity

Answer 10

is an abiotic factor that is connected to the chemical environment of soil.

Question 11

pH scale

Answer 11

it show the acidity levels in soil and water

Question 12

high pH

Answer 12

makes for an alkaline substance

Question 13

low pH

Answer 13

makes for a acidic substance

Question 14

soil erosion

Answer 14

is the loss of soil when water or wind washes it away

Question 15

crop rotation

Answer 15

is the practice of planting a different type of crop in a particular field each year