Which of the following statements best describes a cell’s activity?   a. absorbs nourishment from its surroundings   b. maintains its own existence   c. performs tasks within the larger organism   d. a and b only   e. all of the above statements

Q: What are the most prominent current environmental threats?

A: The environment is composed of all living and non-living things. The term is often used to describe ...

Q: What are the four stages of planetary development?

A: The solar system is the gravitationally bound system around the sun. There are 8 planets, many natur...

Q: Free oxygen in Earth’s atmosphere was produced by   a. chemical reactions taking place in the oc...

A: The atmosphere of the earth was formed when the earth got formed. Earlier there was no oxygen presen...

Q: The atmosphere of Mars consists primarily of   a. carbon dioxide.   b. oxygen.   c. nitr...

A: The solar system is the gravitationally bound system around the sun. It has 8 planets, moons revolvi...

Q: Which is an example of a medium energy environment?     Delta     Mountain river    ...

A: Medium energy environment It represents the environment in which the rate of sedimentation, its volu...

Q: Use complete sentences to explain why there are different units for distances inside and outside of ...

A: The distance between objects in space or the extent of space is so vast outside the earth that using...

Q: The image above shows a barrier island, looking from the open ocean towards land. In the above image...

A: ocean current is a predictable known continuous directional motion of ocean water which are wind dri...

Q: How does one go about this questions?

A: The amount of time it takes for the earth to spin once on its axis in relation to the sun is measure...

Q: Discuss the importance of knowing bulk density values of soils.

A: Bulk density is defined as the total weight of the soil per unit volume of the soil. It is a measure...

Q: Can you help me please

A: Moon is the natural satellite of earth which revolve around earth in a specific orbit and time. It i...

Q: The average domestic wastewater flow is 108 gallon per capita per day (gpcpd), containing TSS concen...

A: Average domestic wastewater flow = 108 gallons per day. 108 gallons= 409 liters approximately.  TSS ...

Q: The ozone layer is found at approximately what altitude above Earth?   a. 5–15 kilometers   b...

A: The atmosphere of a planet, such as Earth's, is made up of layers of gas molecules. The troposphere,...

Q: Identify the moons of Mars and briefly describe their surface characteristics.

A: Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, larger th...

Q: Between the crust and liquid core lies a solid material that behaves as a plastic, flowing under hig...

A: Earth is the third planet in the solar system and it is a terrestrial planet. Therefore, it has a so...

Q: Follow direction of the image and choose the correct answer

A: The Earth comprises various kinds of materials. Each of these materials has different physical prope...

Q: Why are Ursa Major and Cassiopeia constellations not visible in Antarctica?

A: An apparent pattern formed by a group of stars is a constellation. Astronomers and navigators may us...

Q: The physical changes associated with El Niño events can cause cascading biological events, leading t...

A: El Nino is the warm phase of the El Nino-Southern oscillation. It means "the Christ child" in Spanis...

Q: The heavy bombardment era had the greatest influence on which stage of Earth’s development?   a. ...

A: The solar system is the gravitationally bound system around the sun. There are 8 planets, many natur...

Q: Identify what type of rock belongs to the rock in the photo (igneous, sedimentary or metamorphic roc...

A: Rock is solid substance naturally occurring aggregate of mineral or sediments matter. Different rock...

Q: The particles in Jupiter’s ring   a. must be silicate particles.   b. must be particles of i...

A:   Jupiter is the largest and jovian planet. The dust particles that make up its rings were only disc...

Q: My question is in the picture.

A: Rocks are naturally occurring compounds that are aggregates of minerals. The Earth's surface is made...

Q: The Widmanstätten patterns found in some meteorites show that the material   a. cooled very slow...

A: Option a is the correct answer.

Q: Though Titan is small, it is able to retain an atmosphere because   a. it is very cold.   b. ...

A: Titan is the largest moon/satellite of Saturn and second largest natural satellite in the solar syst...

Q: What are the two types of natural resources

A: Resources are the supplies of the products from which we can benefits. They can be of two types- nat...

Q: Evidence of extensive volcanic activity on Mars is found in the   a. highly cratered southern he...

A: Mars is being actively explored by the spacecraft. More than 50 spacecraft have been launched toward...

Q: The belt-zone circulation on Saturn is less visible than it is on Jupiter because the   a. belts...

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...

Q: The crust of Mars is believed to _______________ than Earth’s.   a. be much thinner   b. be ...

A: Firstly, let us discuss something about Mars, Mars: the 4th planet from the Sun the second-smallest...

Q: As a moon in a very elliptical orbit moves closer to and then farther from a planet, gravity flexes ...

A: Let us discuss something about the moon, The Moon: At about one-quarter the diameter of Earth The 5...

Q: The surface of the lunar highlands and the maria are both covered with   a. an equal number of l...

A: Moon has two hemispheres with asymmetric properties. The face of the moon which turned toward the ea...

Q: Explain in detail the mechanisms by which soil organic C reduces soil erosion.?

A: Soil erosion occurs as topsoil is removed, causing the soil to degrade. Several factors, such as win...

Q: Saturn’s rings are   a. composed of ice particles.   b. in the plane of the planet’s equator...

A: Being the sixth planet of the solar system Saturn is among those planets that has rings. It is a hug...

Q: Nereid orbits Neptune in a highly elliptical orbit and Triton has a retrograde orbit around Neptune....

A: Firstly, let us discuss something about Neptune, 8th planet from the Sun 4th largest planet by diam...

Q: Why is it believed that life CANNOT evolve on a planet that orbits a spectral type A, B, or O star? ...

A: The evolution of life on the planets needs a long period. The planets that orbit a  spectral type O,...

Q: The Magellan and Venera spacecraft located similar features, called coronae, on the surface of Venus...

A: Coronae or also known as corona are the oval-shaped feature on the surface of Venus formed due to th...

Q: Neptune’s blue appearance is the result of the presence of   a. hydrogen.   b. helium.   ...

A: Ever since the beginning of the Universe, matter and energy were created. These matters and energy e...

Q: The survival of technological societies limits   a. the size of the average planet.   b. the...

A: By reviewing your question, We need to find The survival of technological societies limits from the ...

Q: What is the difference between epifaunal and infaunal organisms?     Epifaunal organisms live ...

A: Earth is a terrestrial planet, meaning it has a rocky solid surface made up of rocks. However, 71% o...

Q: What would happen if each of these destructive processes were to be applied to the Moon?1. Chemical ...

A: Moon is approximately 345000 kilometers far from the earth. Moon has been discovered with the presen...

Q: What are the most valid remedies that governments and the political class can use to protect the eco...

A: The ecosystem is the geographical area where the living organisms live and interact with each other ...

Q: Instructions: From these five factors affecting climate, choose one particular factor you agree that...

A: The above factors described are those which impact the climate of a place or a region. The factors a...

Q: Earth Science Question

A: The occurrence of day and night is a cyclic process that continues in a never-ending loop. The earth...

Q: Sugars, phosphates, and bases are the basic components that construct a spiral ladder-shaped molecul...

A: By review of the question, We need to find what construct a spiral ladder-shaped molecule out of bas...

Q: Q.4. A particular sequence of sedimentary rocks is found to contain the following assemblage of micr...

A: a. Layer E contains bryozoa, foraminifera and trilobites. The age range for bryozoan is Silurian to ...

Q: Analysis of the surface by spacecraft that have landed on Venus indicates that the surface material ...

A: The planet Venus is present in the second position after Sun. Its presence near the Sun makes the pl...

Q: What is meant by a “runaway” greenhouse effect on Venus?

A: The solar system is the gravitationally bound system around the sun. It has 8 planets, moons revolvi...

Q: In the early 1990s, Miguel Sanchez, a subsistence farmer in Costa Rica, was offered $600,000 by a ho...

A: By reviewing the question The question is about the Miguel Sanchez, a subsistence farmer in Costa Ri...

Q: All objects on the Earth's surface are exposed to weathering and erosion. Which type of rock is form...

A: The rock cycle describes the different stages in the formation of different types of rocks. When the...

Q: The surface of Venus has been studied   a. using radar maps made from Earth.   b. using rada...

A: Venus is a very hot planet with perpetual cloud cover.  So, exploring the planet Venus is very diffi...

Q: Of the two types of comet tails, which one emits light and which one reflects sunlight?

A: The comets are the celestial bodies present in the universe. These lie beyond the Neptune’s orbit in...

Q: The diagrams below show two different locations on Earth.Which correctly describes over which locati...

A: Cyclone is rapid rotating strong system which have low pressure in centre have strong wind and a spi...