5Gravity is the force that pulls objects toward Earth.
6Land forms are always changing Land forms are always changing. Deposition is one process that changes land forms. What kind of force is deposition?A- constructiveB- chemicalC- destructiveD- electrical
7A is the correct answerDeposition is a constructive force.
8The land forms we see today e the result of what kinds of forces? A- constructive forces onlyB- destructive forces onlyC- neither constructive nor destructiveD- both constructive and destructive
9D is the correct answerConstructive forces and destructive forces together shape the land forms we see today.
10Which of these causes rock to be slowly broken down into soil? LandslideWeatheringEarthquakeFossilization
11B is the correct answerWeathering is a process that slowly breaks down rock and turns it into soil.
12What word describes all of the energy resources that were formed from the remains of plants and animal over millions of years?A- oilB- inexhaustible resourcesC- solar energyD- fossil fuels
13D is the correct answerFossil fuels are all of the fuels that were formed over millions of years from the remains of plants and animals.
14Which natural resource is formed from the remains of plants that died millions of years ago? A- waterB- lumberC- coalD- soil
15C is the correct answerCoal is formed over millions of years from the remains of dead plants.
16Soil is made up of different parts, or ingredients Soil is made up of different parts, or ingredients. What part of soil is made up of decayed remains of plants and animals.A- clayB- sandC- siltD- humus
17D is the correct answerHumus is the decayed remains of plants and animals.
18Beaches are often made of sand Beaches are often made of sand. The sand is carried to the beach by waves, which drop the sand on the shore. What is the name of this process?A- sedimentB- land formC- depositionD- abrasion
19C is the correct answerDeposition is the process by which sand and sediments are laid down by waves.
20Ocean waves pick up sand and soil from the shore Ocean waves pick up sand and soil from the shore. What is this process called?A- chemical weatheringB- erosionC- depositionD- sediment
21B is the correct answerWhen ocean waves pick up materials, it is called erosion.
22What type of energy causes the evaporation of water from lakes, oceans, and rivers? A- mechanical energyB- electrical energyC- solar energyD- potential energy
23C is the correct answerSolar energy causes the evaporation of water from Earth’s surface. Evaporation from Earth’s surface is an important part of the water cycle.
24Some farmers leave dead crop plants in the field over the winter Some farmers leave dead crop plants in the field over the winter. What does this prevent?A- rock formationB- soil erosionC- nitrogen fixationD- soil formation
25B is the correct answerA cover of dead plant materials helps prevent soil erosion.
26Which of these is a renewable resource? A- oilB- coalC- woodD- natural gas
27C is the correct answerWood is a resource that can be replaced in a relatively short period of time. It is a renewable resource.
28Which part of the water cycle can take the form of rain, snow, sleet, or hail? A- transpirationB- evaporationC- condensationD- precipitation
29D is the correct answerPrecipitation is the process by which water returns to Earth’s surface. Rain, snow, sleet, and hail are all forms of precipitation.