An ecosystem is a community of living and nonliving things that work together. It includes soil, atmosphere, heat and light from the sun, water and living organisms.

Correct Option: A

An ecosystem is a community of living and nonliving things that work together. It includes soil, atmosphere, heat and light from the sun, water and living organisms.

An ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These components are regarded as linked together through nutrient cycles and energy flows.

Correct Option: A

An ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These components are regarded as linked together through nutrient cycles and energy flows.

Soil, water and climate of a region are the three primary factors significantly influencing the vegetation of a region. Such factors as depth, texture, and humus content of the soil determine the type of vegetation that can be supported in a region. Again, any vegetation needs moisture to survive and this explains the range which varies from evergreen forests to shrubs. Temperature also plays crucial role in plant growth and development with extremes on either end affecting plant growth severely.

Correct Option: A

Soil, water and climate of a region are the three primary factors significantly influencing the vegetation of a region. Such factors as depth, texture, and humus content of the soil determine the type of vegetation that can be supported in a region. Again, any vegetation needs moisture to survive and this explains the range which varies from evergreen forests to shrubs. Temperature also plays crucial role in plant growth and development with extremes on either end affecting plant growth severely.

The tropical and subtropical dry broadleaf forest biome, also known as tropical dry forest, is located at tropical and subtropical latitudes. Deciduous trees predominate in most of these forests, and during the drought a leafless period occurs, which varies with species type. Teak and Sal, along with mango, bamboo, and rosewood, belong to the moist deciduous forests which shed their leaves in the dry season.

Correct Option: C

The tropical and subtropical dry broadleaf forest biome, also known as tropical dry forest, is located at tropical and subtropical latitudes. Deciduous trees predominate in most of these forests, and during the drought a leafless period occurs, which varies with species type. Teak and Sal, along with mango, bamboo, and rosewood, belong to the moist deciduous forests which shed their leaves in the dry season.

Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.

Correct Option: C

Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.